Merge branch 'for_linus' into for_next

.mailmap

···
 Greg Kroah-Hartman <[e-mail]>
 Henk Vergonet <[e-mail]>
 Henrik Kretzschmar <[e-mail]>
+Henrik Rydberg <[e-mail]>
 Herbert Xu <[e-mail]>
 Jacob Shin <[e-mail]>
 James Bottomley <jejb@mulgrave.(none)>

Documentation/target/tcm_mod_builder.py

···
 	buf += "	.release_cmd			= " + fabric_mod_name + "_release_cmd,\n"
 	buf += "	.shutdown_session		= " + fabric_mod_name + "_shutdown_session,\n"
 	buf += "	.close_session			= " + fabric_mod_name + "_close_session,\n"
-	buf += "	.stop_session			= " + fabric_mod_name + "_stop_session,\n"
-	buf += "	.fall_back_to_erl0		= " + fabric_mod_name + "_reset_nexus,\n"
-	buf += "	.sess_logged_in			= " + fabric_mod_name + "_sess_logged_in,\n"
 	buf += "	.sess_get_index			= " + fabric_mod_name + "_sess_get_index,\n"
 	buf += "	.sess_get_initiator_sid		= NULL,\n"
 	buf += "	.write_pending			= " + fabric_mod_name + "_write_pending,\n"
···
 	buf += "	.queue_data_in			= " + fabric_mod_name + "_queue_data_in,\n"
 	buf += "	.queue_status			= " + fabric_mod_name + "_queue_status,\n"
 	buf += "	.queue_tm_rsp			= " + fabric_mod_name + "_queue_tm_rsp,\n"
-	buf += "	.is_state_remove		= " + fabric_mod_name + "_is_state_remove,\n"
+	buf += "	.aborted_task			= " + fabric_mod_name + "_aborted_task,\n"
 	buf += "	/*\n"
 	buf += "	 * Setup function pointers for generic logic in target_core_fabric_configfs.c\n"
 	buf += "	 */\n"
···
 	buf += "	/*\n"
 	buf += "	 * Register the top level struct config_item_type with TCM core\n"
 	buf += "	 */\n"
-	buf += "	fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name[4:] + "\");\n"
+	buf += "	fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name + "\");\n"
 	buf += "	if (IS_ERR(fabric)) {\n"
 	buf += "		printk(KERN_ERR \"target_fabric_configfs_init() failed\\n\");\n"
 	buf += "		return PTR_ERR(fabric);\n"
···
 		if re.search('get_fabric_name', fo):
 			buf += "char *" + fabric_mod_name + "_get_fabric_name(void)\n"
 			buf += "{\n"
-			buf += "	return \"" + fabric_mod_name[4:] + "\";\n"
+			buf += "	return \"" + fabric_mod_name + "\";\n"
 			buf += "}\n\n"
 			bufi += "char *" + fabric_mod_name + "_get_fabric_name(void);\n"
 			continue
···
 			buf += "}\n\n"
 			bufi += "void " + fabric_mod_name + "_close_session(struct se_session *);\n"
 
-		if re.search('stop_session\)\(', fo):
-			buf += "void " + fabric_mod_name + "_stop_session(struct se_session *se_sess, int sess_sleep , int conn_sleep)\n"
-			buf += "{\n"
-			buf += "	return;\n"
-			buf += "}\n\n"
-			bufi += "void " + fabric_mod_name + "_stop_session(struct se_session *, int, int);\n"
-
-		if re.search('fall_back_to_erl0\)\(', fo):
-			buf += "void " + fabric_mod_name + "_reset_nexus(struct se_session *se_sess)\n"
-			buf += "{\n"
-			buf += "	return;\n"
-			buf += "}\n\n"
-			bufi += "void " + fabric_mod_name + "_reset_nexus(struct se_session *);\n"
-
-		if re.search('sess_logged_in\)\(', fo):
-			buf += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *se_sess)\n"
-			buf += "{\n"
-			buf += "	return 0;\n"
-			buf += "}\n\n"
-			bufi += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *);\n"
-
 		if re.search('sess_get_index\)\(', fo):
 			buf += "u32 " + fabric_mod_name + "_sess_get_index(struct se_session *se_sess)\n"
 			buf += "{\n"
···
 			bufi += "int " + fabric_mod_name + "_queue_status(struct se_cmd *);\n"
 
 		if re.search('queue_tm_rsp\)\(', fo):
-			buf += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *se_cmd)\n"
+			buf += "void " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *se_cmd)\n"
 			buf += "{\n"
-			buf += "	return 0;\n"
+			buf += "	return;\n"
 			buf += "}\n\n"
-			bufi += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n"
+			bufi += "void " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n"
 
-		if re.search('is_state_remove\)\(', fo):
-			buf += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *se_cmd)\n"
+		if re.search('aborted_task\)\(', fo):
+			buf += "void " + fabric_mod_name + "_aborted_task(struct se_cmd *se_cmd)\n"
 			buf += "{\n"
-			buf += "	return 0;\n"
+			buf += "	return;\n"
 			buf += "}\n\n"
-			bufi += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *);\n"
-
+			bufi += "void " + fabric_mod_name + "_aborted_task(struct se_cmd *);\n"
 
 	ret = p.write(buf)
 	if ret:
···
 	tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name)
 	tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name)
 
-	input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ")
+	input = raw_input("Would you like to add " + fabric_mod_name + " to drivers/target/Makefile..? [yes,no]: ")
 	if input == "yes" or input == "y":
 		tcm_mod_add_kbuild(tcm_dir, fabric_mod_name)
 
-	input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kconfig..? [yes,no]: ")
+	input = raw_input("Would you like to add " + fabric_mod_name + " to drivers/target/Kconfig..? [yes,no]: ")
 	if input == "yes" or input == "y":
 		tcm_mod_add_kconfig(tcm_dir, fabric_mod_name)
 

MAINTAINERS

···
 F:	drivers/char/apm-emulation.c
 
 APPLE BCM5974 MULTITOUCH DRIVER
-M:	Henrik Rydberg <[e-mail]>
+M:	Henrik Rydberg <[e-mail]>
 L:	[e-mail]
-S:	Maintained
+S:	Odd fixes
 F:	drivers/input/mouse/bcm5974.c
 
 APPLE SMC DRIVER
-M:	Henrik Rydberg <[e-mail]>
+M:	Henrik Rydberg <[e-mail]>
 L:	[e-mail]
-S:	Maintained
+S:	Odd fixes
 F:	drivers/hwmon/applesmc.c
 
 APPLETALK NETWORK LAYER
···
 BTRFS FILE SYSTEM
 M:	Chris Mason <[e-mail]>
 M:	Josef Bacik <[e-mail]>
+M:	David Sterba <[e-mail]>
 L:	[e-mail]
 W:	http://btrfs.wiki.kernel.org/
 Q:	http://patchwork.kernel.org/project/linux-btrfs/list/
···
 F:	include/linux/input/
 
 INPUT MULTITOUCH (MT) PROTOCOL
-M:	Henrik Rydberg <[e-mail]>
+M:	Henrik Rydberg <[e-mail]>
 L:	[e-mail]
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt.git
-S:	Maintained
+S:	Odd fixes
 F:	Documentation/input/multi-touch-protocol.txt
 F:	drivers/input/input-mt.c
 K:	\b(ABS|SYN)_MT_
···
 W:	www.open-iscsi.org
 Q:	http://patchwork.kernel.org/project/linux-rdma/list/
 F:	drivers/infiniband/ulp/iser/
+
+ISCSI EXTENSIONS FOR RDMA (ISER) TARGET
+M:	Sagi Grimberg <[e-mail]>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
+L:	[e-mail]
+L:	[e-mail]
+S:	Supported
+W:	http://www.linux-iscsi.org
+F:	drivers/infiniband/ulp/isert
 
 ISDN SUBSYSTEM
 M:	Karsten Keil <[e-mail]>

Makefile

···
 VERSION = 3
 PATCHLEVEL = 19
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc4
 NAME = Diseased Newt
 
 # *DOCUMENTATION*
···
 # Needed to be compatible with the O= option
 LINUXINCLUDE    := \
 		-I$(srctree)/arch/$(hdr-arch)/include \
+		-Iarch/$(hdr-arch)/include/generated/uapi \
 		-Iarch/$(hdr-arch)/include/generated \
 		$(if $(KBUILD_SRC), -I$(srctree)/include) \
 		-Iinclude \

arch/arm/include/uapi/asm/unistd.h

···
 #define __NR_getrandom			(__NR_SYSCALL_BASE+384)
 #define __NR_memfd_create		(__NR_SYSCALL_BASE+385)
 #define __NR_bpf			(__NR_SYSCALL_BASE+386)
+#define __NR_execveat			(__NR_SYSCALL_BASE+387)
 
 /*
  * The following SWIs are ARM private.

arch/arm/kernel/calls.S

···
 		CALL(sys_getrandom)
 /* 385 */	CALL(sys_memfd_create)
 		CALL(sys_bpf)
+		CALL(sys_execveat)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

arch/arm/kernel/perf_regs.c

···
 {
 	return PERF_SAMPLE_REGS_ABI_32;
 }
+
+void perf_get_regs_user(struct perf_regs *regs_user,
+			struct pt_regs *regs,
+			struct pt_regs *regs_user_copy)
+{
+	regs_user->regs = task_pt_regs(current);
+	regs_user->abi = perf_reg_abi(current);
+}

arch/arm/mm/dump.c

···
 	static const char units[] = "KMGTPE";
 	u64 prot = val & pg_level[level].mask;
 
-	if (addr < USER_PGTABLES_CEILING)
-		return;
-
 	if (!st->level) {
 		st->level = level;
 		st->current_prot = prot;
···
 	pgd_t *pgd = swapper_pg_dir;
 	struct pg_state st;
 	unsigned long addr;
-	unsigned i, pgdoff = USER_PGTABLES_CEILING / PGDIR_SIZE;
+	unsigned i;
 
 	memset(&st, 0, sizeof(st));
 	st.seq = m;
 	st.marker = address_markers;
 
-	pgd += pgdoff;
-
-	for (i = pgdoff; i < PTRS_PER_PGD; i++, pgd++) {
+	for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
 		addr = i * PGDIR_SIZE;
 		if (!pgd_none(*pgd)) {
 			walk_pud(&st, pgd, addr);

arch/arm/mm/init.c

···
 		.start  = (unsigned long)_stext,
 		.end    = (unsigned long)__init_begin,
 #ifdef CONFIG_ARM_LPAE
-		.mask   = ~PMD_SECT_RDONLY,
-		.prot   = PMD_SECT_RDONLY,
+		.mask   = ~L_PMD_SECT_RDONLY,
+		.prot   = L_PMD_SECT_RDONLY,
 #else
 		.mask   = ~(PMD_SECT_APX | PMD_SECT_AP_WRITE),
 		.prot   = PMD_SECT_APX | PMD_SECT_AP_WRITE,

arch/arm/mm/mmu.c

···
 static void __init map_lowmem(void)
 {
 	struct memblock_region *reg;
-	unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-	unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
+	phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
+	phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
 
 	/* Map all the lowmem memory banks. */
 	for_each_memblock(memory, reg) {

arch/arm64/include/asm/arch_timer.h

···
 
 #include <asm/barrier.h>
 
+#include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/types.h>
 

arch/arm64/include/asm/cpu.h

···
 	u64		reg_id_aa64pfr0;
 	u64		reg_id_aa64pfr1;
 
+	u32		reg_id_dfr0;
 	u32		reg_id_isar0;
 	u32		reg_id_isar1;
 	u32		reg_id_isar2;
···
 	u32		reg_id_mmfr3;
 	u32		reg_id_pfr0;
 	u32		reg_id_pfr1;
+
+	u32		reg_mvfr0;
+	u32		reg_mvfr1;
+	u32		reg_mvfr2;
 };
 
 DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);

arch/arm64/include/asm/processor.h

···
 
 #include <asm/fpsimd.h>
 #include <asm/hw_breakpoint.h>
+#include <asm/pgtable-hwdef.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
 
···
 
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk)	do { } while (0)
 
 unsigned long get_wchan(struct task_struct *p);
 

arch/arm64/include/asm/unistd.h

···
 #define __ARM_NR_compat_cacheflush	(__ARM_NR_COMPAT_BASE+2)
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE+5)
 
-#define __NR_compat_syscalls		386
+#define __NR_compat_syscalls		387
 #endif
 
 #define __ARCH_WANT_SYS_CLONE

arch/arm64/kernel/cpuinfo.c

···
 	 * If we have AArch32, we care about 32-bit features for compat. These
 	 * registers should be RES0 otherwise.
 	 */
+	diff |= CHECK(id_dfr0, boot, cur, cpu);
 	diff |= CHECK(id_isar0, boot, cur, cpu);
 	diff |= CHECK(id_isar1, boot, cur, cpu);
 	diff |= CHECK(id_isar2, boot, cur, cpu);
···
 	diff |= CHECK(id_mmfr3, boot, cur, cpu);
 	diff |= CHECK(id_pfr0, boot, cur, cpu);
 	diff |= CHECK(id_pfr1, boot, cur, cpu);
+
+	diff |= CHECK(mvfr0, boot, cur, cpu);
+	diff |= CHECK(mvfr1, boot, cur, cpu);
+	diff |= CHECK(mvfr2, boot, cur, cpu);
 
 	/*
 	 * Mismatched CPU features are a recipe for disaster. Don't even
···
 	info->reg_id_aa64pfr0 = read_cpuid(ID_AA64PFR0_EL1);
 	info->reg_id_aa64pfr1 = read_cpuid(ID_AA64PFR1_EL1);
 
+	info->reg_id_dfr0 = read_cpuid(ID_DFR0_EL1);
 	info->reg_id_isar0 = read_cpuid(ID_ISAR0_EL1);
 	info->reg_id_isar1 = read_cpuid(ID_ISAR1_EL1);
 	info->reg_id_isar2 = read_cpuid(ID_ISAR2_EL1);
···
 	info->reg_id_mmfr3 = read_cpuid(ID_MMFR3_EL1);
 	info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1);
 	info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1);
+
+	info->reg_mvfr0 = read_cpuid(MVFR0_EL1);
+	info->reg_mvfr1 = read_cpuid(MVFR1_EL1);
+	info->reg_mvfr2 = read_cpuid(MVFR2_EL1);
 
 	cpuinfo_detect_icache_policy(info);
 

arch/arm64/kernel/efi.c

···
 
 	/* boot time idmap_pg_dir is incomplete, so fill in missing parts */
 	efi_setup_idmap();
+	early_memunmap(memmap.map, memmap.map_end - memmap.map);
 }
 
 static int __init remap_region(efi_memory_desc_t *md, void **new)
···
 	}
 
 	mapsize = memmap.map_end - memmap.map;
-	early_memunmap(memmap.map, mapsize);
 
 	if (efi_runtime_disabled()) {
 		pr_info("EFI runtime services will be disabled.\n");

arch/arm64/kernel/module.c

···
 #include <linux/mm.h>
 #include <linux/moduleloader.h>
 #include <linux/vmalloc.h>
+#include <asm/alternative.h>
 #include <asm/insn.h>
 #include <asm/sections.h>
 

arch/arm64/kernel/perf_regs.c

···
 	else
 		return PERF_SAMPLE_REGS_ABI_64;
 }
+
+void perf_get_regs_user(struct perf_regs *regs_user,
+			struct pt_regs *regs,
+			struct pt_regs *regs_user_copy)
+{
+	regs_user->regs = task_pt_regs(current);
+	regs_user->abi = perf_reg_abi(current);
+}

arch/arm64/kernel/setup.c

···
 	request_standard_resources();
 
 	efi_idmap_init();
+	early_ioremap_reset();
 
 	unflatten_device_tree();
 

arch/arm64/kernel/smp_spin_table.c

···
 #include <asm/cacheflush.h>
 #include <asm/cpu_ops.h>
 #include <asm/cputype.h>
+#include <asm/io.h>
 #include <asm/smp_plat.h>
 
 extern void secondary_holding_pen(void);

arch/blackfin/mach-bf533/boards/stamp.c

···
  */
 
 #include <linux/device.h>
+#include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>

arch/ia64/include/asm/unistd.h

···
 
 
 
-#define NR_syscalls			318 /* length of syscall table */
+#define NR_syscalls			319 /* length of syscall table */
 
 /*
  * The following defines stop scripts/checksyscalls.sh from complaining about

arch/ia64/include/uapi/asm/unistd.h

···
 #define __NR_getrandom			1339
 #define __NR_memfd_create		1340
 #define __NR_bpf			1341
+#define __NR_execveat			1342
 
 #endif /* _UAPI_ASM_IA64_UNISTD_H */

arch/ia64/kernel/acpi.c

···
 }
 
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
+int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu)
 {
 	return _acpi_map_lsapic(handle, physid, pcpu);
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
+EXPORT_SYMBOL(acpi_map_cpu);
 
-int acpi_unmap_lsapic(int cpu)
+int acpi_unmap_cpu(int cpu)
 {
 	ia64_cpu_to_sapicid[cpu] = -1;
 	set_cpu_present(cpu, false);
···
 
 	return (0);
 }
-
-EXPORT_SYMBOL(acpi_unmap_lsapic);
+EXPORT_SYMBOL(acpi_unmap_cpu);
 #endif				/* CONFIG_ACPI_HOTPLUG_CPU */
 
 #ifdef CONFIG_ACPI_NUMA

arch/ia64/kernel/entry.S

···
 	data8 sys_getrandom
 	data8 sys_memfd_create			// 1340
 	data8 sys_bpf
+	data8 sys_execveat
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
 #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */

arch/powerpc/include/asm/kexec.h

···
 extern void reserve_crashkernel(void);
 extern void machine_kexec_mask_interrupts(void);
 
+static inline bool kdump_in_progress(void)
+{
+	return crashing_cpu >= 0;
+}
+
 #else /* !CONFIG_KEXEC */
 static inline void crash_kexec_secondary(struct pt_regs *regs) { }
 
···
 static inline int crash_shutdown_unregister(crash_shutdown_t handler)
 {
 	return 0;
+}
+
+static inline bool kdump_in_progress(void)
+{
+	return false;
 }
 
 #endif /* CONFIG_KEXEC */

arch/powerpc/include/asm/systbl.h

···
 SYSCALL_SPU(getrandom)
 SYSCALL_SPU(memfd_create)
 SYSCALL_SPU(bpf)
+COMPAT_SYS(execveat)

arch/powerpc/include/asm/unistd.h

···
 #include <uapi/asm/unistd.h>
 
 
-#define __NR_syscalls		362
+#define __NR_syscalls		363
 
 #define __NR__exit __NR_exit
 #define NR_syscalls	__NR_syscalls

arch/powerpc/include/uapi/asm/unistd.h

···
 #define __NR_getrandom		359
 #define __NR_memfd_create	360
 #define __NR_bpf		361
+#define __NR_execveat		362
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */

arch/powerpc/kernel/machine_kexec_64.c

···
         * using debugger IPI.
         */
 
-	if (crashing_cpu == -1)
+	if (!kdump_in_progress())
 		kexec_prepare_cpus();
 
 	pr_debug("kexec: Starting switchover sequence.\n");

arch/powerpc/kernel/smp.c

···
 	smp_store_cpu_info(cpu);
 	set_dec(tb_ticks_per_jiffy);
 	preempt_disable();
+	cpu_callin_map[cpu] = 1;
 
 	if (smp_ops->setup_cpu)
 		smp_ops->setup_cpu(cpu);
···
 	smp_wmb();
 	notify_cpu_starting(cpu);
 	set_cpu_online(cpu, true);
-
-	/*
-	 * CPU must be marked active and online before we signal back to the
-	 * master, because the scheduler needs to see the cpu_online and
-	 * cpu_active bits set.
-	 */
-	smp_wmb();
-	cpu_callin_map[cpu] = 1;
 
 	local_irq_enable();
 

arch/powerpc/platforms/pseries/lpar.c

···
 #include <asm/trace.h>
 #include <asm/firmware.h>
 #include <asm/plpar_wrappers.h>
+#include <asm/kexec.h>
 #include <asm/fadump.h>
 
 #include "pseries.h"
···
 		 * out to the user, but at least this will stop us from
 		 * continuing on further and creating an even more
 		 * difficult to debug situation.
+		 *
+		 * There is a known problem when kdump'ing, if cpus are offline
+		 * the above call will fail. Rather than panicking again, keep
+		 * going and hope the kdump kernel is also little endian, which
+		 * it usually is.
 		 */
-		if (rc)
+		if (rc && !kdump_in_progress())
 			panic("Could not enable big endian exceptions");
 	}
 #endif

arch/x86/boot/Makefile

···
 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
 	$(call if_changed,cpustr)
 endif
+clean-files += cpustr.h
 
 # ---------------------------------------------------------------------------
 

arch/x86/crypto/Makefile

···
 
 obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
 obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
-obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/
 obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o
 obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o
 obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o
···
 ifeq ($(avx2_supported),yes)
 	obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
 	obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
+	obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/
 endif
 
 aes-i586-y := aes-i586-asm_32.o aes_glue.o

arch/x86/crypto/aes_ctrby8_avx-x86_64.S

···
 
 	.if (klen == KEY_128)
 		.if (load_keys)
-			vmovdqa	3*16(p_keys), xkeyA
+			vmovdqa	3*16(p_keys), xkey4
 		.endif
 	.else
 		vmovdqa	3*16(p_keys), xkeyA
···
 	add	$(16*by), p_in
 
 	.if (klen == KEY_128)
-		vmovdqa	4*16(p_keys), xkey4
+		vmovdqa	4*16(p_keys), xkeyB
 	.else
 		.if (load_keys)
 			vmovdqa	4*16(p_keys), xkey4
···
 	.set i, 0
 	.rept by
 		club XDATA, i
-		vaesenc	xkeyA, var_xdata, var_xdata		/* key 3 */
+		/* key 3 */
+		.if (klen == KEY_128)
+			vaesenc	xkey4, var_xdata, var_xdata
+		.else
+			vaesenc	xkeyA, var_xdata, var_xdata
+		.endif
 		.set i, (i +1)
 	.endr
 
···
 	.set i, 0
 	.rept by
 		club XDATA, i
-		vaesenc	xkey4, var_xdata, var_xdata		/* key 4 */
+		/* key 4 */
+		.if (klen == KEY_128)
+			vaesenc	xkeyB, var_xdata, var_xdata
+		.else
+			vaesenc	xkey4, var_xdata, var_xdata
+		.endif
 		.set i, (i +1)
 	.endr
 
 	.if (klen == KEY_128)
 		.if (load_keys)
-			vmovdqa	6*16(p_keys), xkeyB
+			vmovdqa	6*16(p_keys), xkey8
 		.endif
 	.else
 		vmovdqa	6*16(p_keys), xkeyB
···
 	.set i, 0
 	.rept by
 		club XDATA, i
-		vaesenc	xkeyB, var_xdata, var_xdata		/* key 6 */
+		/* key 6 */
+		.if (klen == KEY_128)
+			vaesenc	xkey8, var_xdata, var_xdata
+		.else
+			vaesenc	xkeyB, var_xdata, var_xdata
+		.endif
 		.set i, (i +1)
 	.endr
 
 	.if (klen == KEY_128)
-		vmovdqa	8*16(p_keys), xkey8
+		vmovdqa	8*16(p_keys), xkeyB
 	.else
 		.if (load_keys)
 			vmovdqa	8*16(p_keys), xkey8
···
 
 	.if (klen == KEY_128)
 		.if (load_keys)
-			vmovdqa	9*16(p_keys), xkeyA
+			vmovdqa	9*16(p_keys), xkey12
 		.endif
 	.else
 		vmovdqa	9*16(p_keys), xkeyA
···
 	.set i, 0
 	.rept by
 		club XDATA, i
-		vaesenc	xkey8, var_xdata, var_xdata		/* key 8 */
+		/* key 8 */
+		.if (klen == KEY_128)
+			vaesenc	xkeyB, var_xdata, var_xdata
+		.else
+			vaesenc	xkey8, var_xdata, var_xdata
+		.endif
 		.set i, (i +1)
 	.endr
 
···
 	.set i, 0
 	.rept by
 		club XDATA, i
-		vaesenc	xkeyA, var_xdata, var_xdata		/* key 9 */
+		/* key 9 */
+		.if (klen == KEY_128)
+			vaesenc	xkey12, var_xdata, var_xdata
+		.else
+			vaesenc	xkeyA, var_xdata, var_xdata
+		.endif
 		.set i, (i +1)
 	.endr
 
···
 /* main body of aes ctr load */
 
 .macro do_aes_ctrmain key_len
-
 	cmp	$16, num_bytes
 	jb	.Ldo_return2\key_len
 

arch/x86/include/asm/vgtod.h

···
 
 	/*
 	 * Load per CPU data from GDT.  LSL is faster than RDTSCP and
-	 * works on all CPUs.
+	 * works on all CPUs.  This is volatile so that it orders
+	 * correctly wrt barrier() and to keep gcc from cleverly
+	 * hoisting it out of the calling function.
 	 */
-	asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
+	asm volatile ("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
 
 	return p;
 }

arch/x86/kernel/acpi/boot.c

···
 }
 
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
+int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu)
 {
 	return _acpi_map_lsapic(handle, physid, pcpu);
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
+EXPORT_SYMBOL(acpi_map_cpu);
 
-int acpi_unmap_lsapic(int cpu)
+int acpi_unmap_cpu(int cpu)
 {
 #ifdef CONFIG_ACPI_NUMA
 	set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE);
···
 
 	return (0);
 }
-
-EXPORT_SYMBOL(acpi_unmap_lsapic);
+EXPORT_SYMBOL(acpi_unmap_cpu);
 #endif				/* CONFIG_ACPI_HOTPLUG_CPU */
 
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)

arch/x86/kernel/cpu/Makefile

···
 $(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE
 	$(call if_changed,mkcapflags)
 endif
+clean-files += capflags.c

arch/x86/kernel/cpu/mkcapflags.sh

···
 		# If the /* comment */ starts with a quote string, grab that.
 		VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')"
 		[ -z "$VALUE" ] && VALUE="\"$NAME\""
-		[ "$VALUE" == '""' ] && continue
+		[ "$VALUE" = '""' ] && continue
 
 		# Name is uppercase, VALUE is all lowercase
 		VALUE="$(echo "$VALUE" | tr A-Z a-z)"

arch/x86/kernel/cpu/perf_event_intel_uncore.h

···
 #define UNCORE_PCI_DEV_TYPE(data)	((data >> 8) & 0xff)
 #define UNCORE_PCI_DEV_IDX(data)	(data & 0xff)
 #define UNCORE_EXTRA_PCI_DEV		0xff
-#define UNCORE_EXTRA_PCI_DEV_MAX	2
+#define UNCORE_EXTRA_PCI_DEV_MAX	3
 
 /* support up to 8 sockets */
 #define UNCORE_SOCKET_MAX		8

arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c

···
 enum {
 	SNBEP_PCI_QPI_PORT0_FILTER,
 	SNBEP_PCI_QPI_PORT1_FILTER,
+	HSWEP_PCI_PCU_3,
 };
 
 static int snbep_qpi_hw_config(struct intel_uncore_box *box, struct perf_event *event)
···
 {
 	if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
 		hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+
+	/* Detect 6-8 core systems with only two SBOXes */
+	if (uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3]) {
+		u32 capid4;
+
+		pci_read_config_dword(uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3],
+				      0x94, &capid4);
+		if (((capid4 >> 6) & 0x3) == 0)
+			hswep_uncore_sbox.num_boxes = 2;
+	}
+
 	uncore_msr_uncores = hswep_msr_uncores;
 }
 
···
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f96),
 		.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
 						   SNBEP_PCI_QPI_PORT1_FILTER),
+	},
+	{ /* PCU.3 (for Capability registers) */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fc0),
+		.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+						   HSWEP_PCI_PCU_3),
 	},
 	{ /* end: all zeroes */ }
 };

arch/x86/kernel/perf_regs.c

···
 {
 	return PERF_SAMPLE_REGS_ABI_32;
 }
+
+void perf_get_regs_user(struct perf_regs *regs_user,
+			struct pt_regs *regs,
+			struct pt_regs *regs_user_copy)
+{
+	regs_user->regs = task_pt_regs(current);
+	regs_user->abi = perf_reg_abi(current);
+}
 #else /* CONFIG_X86_64 */
 #define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
 		       (1ULL << PERF_REG_X86_ES) | \
···
 		return PERF_SAMPLE_REGS_ABI_32;
 	else
 		return PERF_SAMPLE_REGS_ABI_64;
+}
+
+void perf_get_regs_user(struct perf_regs *regs_user,
+			struct pt_regs *regs,
+			struct pt_regs *regs_user_copy)
+{
+	struct pt_regs *user_regs = task_pt_regs(current);
+
+	/*
+	 * If we're in an NMI that interrupted task_pt_regs setup, then
+	 * we can't sample user regs at all.  This check isn't really
+	 * sufficient, though, as we could be in an NMI inside an interrupt
+	 * that happened during task_pt_regs setup.
+	 */
+	if (regs->sp > (unsigned long)&user_regs->r11 &&
+	    regs->sp <= (unsigned long)(user_regs + 1)) {
+		regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;
+		regs_user->regs = NULL;
+		return;
+	}
+
+	/*
+	 * RIP, flags, and the argument registers are usually saved.
+	 * orig_ax is probably okay, too.
+	 */
+	regs_user_copy->ip = user_regs->ip;
+	regs_user_copy->cx = user_regs->cx;
+	regs_user_copy->dx = user_regs->dx;
+	regs_user_copy->si = user_regs->si;
+	regs_user_copy->di = user_regs->di;
+	regs_user_copy->r8 = user_regs->r8;
+	regs_user_copy->r9 = user_regs->r9;
+	regs_user_copy->r10 = user_regs->r10;
+	regs_user_copy->r11 = user_regs->r11;
+	regs_user_copy->orig_ax = user_regs->orig_ax;
+	regs_user_copy->flags = user_regs->flags;
+
+	/*
+	 * Don't even try to report the "rest" regs.
+	 */
+	regs_user_copy->bx = -1;
+	regs_user_copy->bp = -1;
+	regs_user_copy->r12 = -1;
+	regs_user_copy->r13 = -1;
+	regs_user_copy->r14 = -1;
+	regs_user_copy->r15 = -1;
+
+	/*
+	 * For this to be at all useful, we need a reasonable guess for
+	 * sp and the ABI.  Be careful: we're in NMI context, and we're
+	 * considering current to be the current task, so we should
+	 * be careful not to look at any other percpu variables that might
+	 * change during context switches.
+	 */
+	if (IS_ENABLED(CONFIG_IA32_EMULATION) &&
+	    task_thread_info(current)->status & TS_COMPAT) {
+		/* Easy case: we're in a compat syscall. */
+		regs_user->abi = PERF_SAMPLE_REGS_ABI_32;
+		regs_user_copy->sp = user_regs->sp;
+		regs_user_copy->cs = user_regs->cs;
+		regs_user_copy->ss = user_regs->ss;
+	} else if (user_regs->orig_ax != -1) {
+		/*
+		 * We're probably in a 64-bit syscall.
+		 * Warning: this code is severely racy.  At least it's better
+		 * than just blindly copying user_regs.
+		 */
+		regs_user->abi = PERF_SAMPLE_REGS_ABI_64;
+		regs_user_copy->sp = this_cpu_read(old_rsp);
+		regs_user_copy->cs = __USER_CS;
+		regs_user_copy->ss = __USER_DS;
+		regs_user_copy->cx = -1;  /* usually contains garbage */
+	} else {
+		/* We're probably in an interrupt or exception. */
+		regs_user->abi = user_64bit_mode(user_regs) ?
+			PERF_SAMPLE_REGS_ABI_64 : PERF_SAMPLE_REGS_ABI_32;
+		regs_user_copy->sp = user_regs->sp;
+		regs_user_copy->cs = user_regs->cs;
+		regs_user_copy->ss = user_regs->ss;
+	}
+
+	regs_user->regs = regs_user_copy;
 }
 #endif /* CONFIG_X86_32 */

arch/x86/lib/insn.c

···
 
 /* Verify next sizeof(t) bytes can be on the same instruction */
 #define validate_next(t, insn, n)	\
-	((insn)->next_byte + sizeof(t) + n < (insn)->end_kaddr)
+	((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
 
 #define __get_next(t, insn)	\
 	({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; })

arch/x86/mm/init.c

···
 static unsigned long __init get_new_step_size(unsigned long step_size)
 {
 	/*
-	 * Explain why we shift by 5 and why we don't have to worry about
-	 * 'step_size << 5' overflowing:
-	 *
-	 * initial mapped size is PMD_SIZE (2M).
+	 * Initial mapped size is PMD_SIZE (2M).
 	 * We can not set step_size to be PUD_SIZE (1G) yet.
 	 * In worse case, when we cross the 1G boundary, and
 	 * PG_LEVEL_2M is not set, we will need 1+1+512 pages (2M + 8k)
-	 * to map 1G range with PTE. Use 5 as shift for now.
+	 * to map 1G range with PTE. Hence we use one less than the
+	 * difference of page table level shifts.
 	 *
-	 * Don't need to worry about overflow, on 32bit, when step_size
-	 * is 0, round_down() returns 0 for start, and that turns it
-	 * into 0x100000000ULL.
+	 * Don't need to worry about overflow in the top-down case, on 32bit,
+	 * when step_size is 0, round_down() returns 0 for start, and that
+	 * turns it into 0x100000000ULL.
+	 * In the bottom-up case, round_up(x, 0) returns 0 though too, which
+	 * needs to be taken into consideration by the code below.
 	 */
-	return step_size << 5;
+	return step_size << (PMD_SHIFT - PAGE_SHIFT - 1);
 }
 
 /**
···
 	unsigned long step_size;
 	unsigned long addr;
 	unsigned long mapped_ram_size = 0;
-	unsigned long new_mapped_ram_size;
 
 	/* xen has big range in reserved near end of ram, skip it at first.*/
 	addr = memblock_find_in_range(map_start, map_end, PMD_SIZE, PMD_SIZE);
···
 				start = map_start;
 		} else
 			start = map_start;
-		new_mapped_ram_size = init_range_memory_mapping(start,
+		mapped_ram_size += init_range_memory_mapping(start,
 							last_start);
 		last_start = start;
 		min_pfn_mapped = last_start >> PAGE_SHIFT;
-		/* only increase step_size after big range get mapped */
-		if (new_mapped_ram_size > mapped_ram_size)
+		if (mapped_ram_size >= step_size)
 			step_size = get_new_step_size(step_size);
-		mapped_ram_size += new_mapped_ram_size;
 	}
 
 	if (real_end < map_end)
···
 static void __init memory_map_bottom_up(unsigned long map_start,
 					unsigned long map_end)
 {
-	unsigned long next, new_mapped_ram_size, start;
+	unsigned long next, start;
 	unsigned long mapped_ram_size = 0;
 	/* step_size need to be small so pgt_buf from BRK could cover it */
 	unsigned long step_size = PMD_SIZE;
···
 	 * for page table.
 	 */
 	while (start < map_end) {
-		if (map_end - start > step_size) {
+		if (step_size && map_end - start > step_size) {
 			next = round_up(start + 1, step_size);
 			if (next > map_end)
 				next = map_end;
-		} else
+		} else {
 			next = map_end;
+		}
 
-		new_mapped_ram_size = init_range_memory_mapping(start, next);
+		mapped_ram_size += init_range_memory_mapping(start, next);
 		start = next;
 
-		if (new_mapped_ram_size > mapped_ram_size)
+		if (mapped_ram_size >= step_size)
 			step_size = get_new_step_size(step_size);
-		mapped_ram_size += new_mapped_ram_size;
 	}
 }
 

arch/x86/vdso/vma.c

···
 
 struct linux_binprm;
 
-/* Put the vdso above the (randomized) stack with another randomized offset.
-   This way there is no hole in the middle of address space.
-   To save memory make sure it is still in the same PTE as the stack top.
-   This doesn't give that many random bits.
-
-   Only used for the 64-bit and x32 vdsos. */
+/*
+ * Put the vdso above the (randomized) stack with another randomized
+ * offset.  This way there is no hole in the middle of address space.
+ * To save memory make sure it is still in the same PTE as the stack
+ * top.  This doesn't give that many random bits.
+ *
+ * Note that this algorithm is imperfect: the distribution of the vdso
+ * start address within a PMD is biased toward the end.
+ *
+ * Only used for the 64-bit and x32 vdsos.
+ */
 static unsigned long vdso_addr(unsigned long start, unsigned len)
 {
 #ifdef CONFIG_X86_32
···
 #else
 	unsigned long addr, end;
 	unsigned offset;
-	end = (start + PMD_SIZE - 1) & PMD_MASK;
+
+	/*
+	 * Round up the start address.  It can start out unaligned as a result
+	 * of stack start randomization.
+	 */
+	start = PAGE_ALIGN(start);
+
+	/* Round the lowest possible end address up to a PMD boundary. */
+	end = (start + len + PMD_SIZE - 1) & PMD_MASK;
 	if (end >= TASK_SIZE_MAX)
 		end = TASK_SIZE_MAX;
 	end -= len;
-	/* This loses some more bits than a modulo, but is cheaper */
-	offset = get_random_int() & (PTRS_PER_PTE - 1);
-	addr = start + (offset << PAGE_SHIFT);
-	if (addr >= end)
-		addr = end;
+
+	if (end > start) {
+		offset = get_random_int() % (((end - start) >> PAGE_SHIFT) + 1);
+		addr = start + (offset << PAGE_SHIFT);
+	} else {
+		addr = start;
+	}
 
 	/*
-	 * page-align it here so that get_unmapped_area doesn't
-	 * align it wrongfully again to the next page. addr can come in 4K
-	 * unaligned here as a result of stack start randomization.
+	 * Forcibly align the final address in case we have a hardware
+	 * issue that requires alignment for performance reasons.
 	 */
-	addr = PAGE_ALIGN(addr);
 	addr = align_vdso_addr(addr);
 
 	return addr;

arch/x86/xen/enlighten.c

···
 #include <xen/interface/physdev.h>
 #include <xen/interface/vcpu.h>
 #include <xen/interface/memory.h>
+#include <xen/interface/nmi.h>
 #include <xen/interface/xen-mca.h>
 #include <xen/features.h>
 #include <xen/page.h>
···
 #include <asm/reboot.h>
 #include <asm/stackprotector.h>
 #include <asm/hypervisor.h>
+#include <asm/mach_traps.h>
 #include <asm/mwait.h>
 #include <asm/pci_x86.h>
 #include <asm/pat.h>
···
 	.emergency_restart = xen_emergency_restart,
 };
 
+static unsigned char xen_get_nmi_reason(void)
+{
+	unsigned char reason = 0;
+
+	/* Construct a value which looks like it came from port 0x61. */
+	if (test_bit(_XEN_NMIREASON_io_error,
+		     &HYPERVISOR_shared_info->arch.nmi_reason))
+		reason |= NMI_REASON_IOCHK;
+	if (test_bit(_XEN_NMIREASON_pci_serr,
+		     &HYPERVISOR_shared_info->arch.nmi_reason))
+		reason |= NMI_REASON_SERR;
+
+	return reason;
+}
+
 static void __init xen_boot_params_init_edd(void)
 {
 #if IS_ENABLED(CONFIG_EDD)
···
 	pv_info = xen_info;
 	pv_init_ops = xen_init_ops;
 	pv_apic_ops = xen_apic_ops;
-	if (!xen_pvh_domain())
+	if (!xen_pvh_domain()) {
 		pv_cpu_ops = xen_cpu_ops;
+
+		x86_platform.get_nmi_reason = xen_get_nmi_reason;
+	}
 
 	if (xen_feature(XENFEAT_auto_translated_physmap))
 		x86_init.resources.memory_setup = xen_auto_xlated_memory_setup;

arch/x86/xen/p2m.c

···
 	return (void *)__get_free_page(GFP_KERNEL | __GFP_REPEAT);
 }
 
-/* Only to be called in case of a race for a page just allocated! */
-static void free_p2m_page(void *p)
+static void __ref free_p2m_page(void *p)
 {
-	BUG_ON(!slab_is_available());
+	if (unlikely(!slab_is_available())) {
+		free_bootmem((unsigned long)p, PAGE_SIZE);
+		return;
+	}
+
 	free_page((unsigned long)p);
 }
 
···
 			p2m_missing_pte : p2m_identity_pte;
 		for (i = 0; i < PMDS_PER_MID_PAGE; i++) {
 			pmdp = populate_extra_pmd(
-				(unsigned long)(p2m + pfn + i * PTRS_PER_PTE));
+				(unsigned long)(p2m + pfn) + i * PMD_SIZE);
 			set_pmd(pmdp, __pmd(__pa(ptep) | _KERNPG_TABLE));
 		}
 	}
···
  * a new pmd is to replace p2m_missing_pte or p2m_identity_pte by a individual
  * pmd. In case of PAE/x86-32 there are multiple pmds to allocate!
  */
-static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg)
+static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *pte_pg)
 {
 	pte_t *ptechk;
-	pte_t *pteret = ptep;
 	pte_t *pte_newpg[PMDS_PER_MID_PAGE];
 	pmd_t *pmdp;
 	unsigned int level;
···
 		if (ptechk == pte_pg) {
 			set_pmd(pmdp,
 				__pmd(__pa(pte_newpg[i]) | _KERNPG_TABLE));
-			if (vaddr == (addr & ~(PMD_SIZE - 1)))
-				pteret = pte_offset_kernel(pmdp, addr);
 			pte_newpg[i] = NULL;
 		}
 
···
 		vaddr += PMD_SIZE;
 	}
 
-	return pteret;
+	return lookup_address(addr, &level);
 }
 
 /*
···
 
 	if (pte_pg == p2m_missing_pte || pte_pg == p2m_identity_pte) {
 		/* PMD level is missing, allocate a new one */
-		ptep = alloc_p2m_pmd(addr, ptep, pte_pg);
+		ptep = alloc_p2m_pmd(addr, pte_pg);
 		if (!ptep)
 			return false;
 	}

arch/x86/xen/setup.c

···
 unsigned long __ref xen_chk_extra_mem(unsigned long pfn)
 {
 	int i;
-	unsigned long addr = PFN_PHYS(pfn);
+	phys_addr_t addr = PFN_PHYS(pfn);
 
 	for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
 		if (addr >= xen_extra_mem[i].start &&
···
 	int i;
 
 	for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
+		if (!xen_extra_mem[i].size)
+			continue;
 		pfn_s = PFN_DOWN(xen_extra_mem[i].start);
 		pfn_e = PFN_UP(xen_extra_mem[i].start + xen_extra_mem[i].size);
 		for (pfn = pfn_s; pfn < pfn_e; pfn++)
···
  * as a fallback if the remapping fails.
  */
 static void __init xen_set_identity_and_release_chunk(unsigned long start_pfn,
-	unsigned long end_pfn, unsigned long nr_pages, unsigned long *identity,
-	unsigned long *released)
+	unsigned long end_pfn, unsigned long nr_pages, unsigned long *released)
 {
-	unsigned long len = 0;
 	unsigned long pfn, end;
 	int ret;
 
 	WARN_ON(start_pfn > end_pfn);
 
+	/* Release pages first. */
 	end = min(end_pfn, nr_pages);
 	for (pfn = start_pfn; pfn < end; pfn++) {
 		unsigned long mfn = pfn_to_mfn(pfn);
···
 		WARN(ret != 1, "Failed to release pfn %lx err=%d\n", pfn, ret);
 
 		if (ret == 1) {
+			(*released)++;
 			if (!__set_phys_to_machine(pfn, INVALID_P2M_ENTRY))
 				break;
-			len++;
 		} else
 			break;
 	}
 
-	/* Need to release pages first */
-	*released += len;
-	*identity += set_phys_range_identity(start_pfn, end_pfn);
+	set_phys_range_identity(start_pfn, end_pfn);
 }
 
 /*
···
 	}
 
 	/* Update kernel mapping, but not for highmem. */
-	if ((pfn << PAGE_SHIFT) >= __pa(high_memory))
+	if (pfn >= PFN_UP(__pa(high_memory - 1)))
 		return;
 
 	if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT),
···
 	unsigned long ident_pfn_iter, remap_pfn_iter;
 	unsigned long ident_end_pfn = start_pfn + size;
 	unsigned long left = size;
-	unsigned long ident_cnt = 0;
 	unsigned int i, chunk;
 
 	WARN_ON(size == 0);
···
 		xen_remap_mfn = mfn;
 
 		/* Set identity map */
-		ident_cnt += set_phys_range_identity(ident_pfn_iter,
-			ident_pfn_iter + chunk);
+		set_phys_range_identity(ident_pfn_iter, ident_pfn_iter + chunk);
 
 		left -= chunk;
 	}
···
 static unsigned long __init xen_set_identity_and_remap_chunk(
         const struct e820entry *list, size_t map_size, unsigned long start_pfn,
 	unsigned long end_pfn, unsigned long nr_pages, unsigned long remap_pfn,
-	unsigned long *identity, unsigned long *released)
+	unsigned long *released, unsigned long *remapped)
 {
 	unsigned long pfn;
 	unsigned long i = 0;
···
 		/* Do not remap pages beyond the current allocation */
 		if (cur_pfn >= nr_pages) {
 			/* Identity map remaining pages */
-			*identity += set_phys_range_identity(cur_pfn,
-				cur_pfn + size);
+			set_phys_range_identity(cur_pfn, cur_pfn + size);
 			break;
 		}
 		if (cur_pfn + size > nr_pages)
···
 		if (!remap_range_size) {
 			pr_warning("Unable to find available pfn range, not remapping identity pages\n");
 			xen_set_identity_and_release_chunk(cur_pfn,
-				cur_pfn + left, nr_pages, identity, released);
+				cur_pfn + left, nr_pages, released);
 			break;
 		}
 		/* Adjust size to fit in current e820 RAM region */
···
 		/* Update variables to reflect new mappings. */
 		i += size;
 		remap_pfn += size;
-		*identity += size;
+		*remapped += size;
 	}
 
 	/*
···
 
 static void __init xen_set_identity_and_remap(
 	const struct e820entry *list, size_t map_size, unsigned long nr_pages,
-	unsigned long *released)
+	unsigned long *released, unsigned long *remapped)
 {
 	phys_addr_t start = 0;
-	unsigned long identity = 0;
 	unsigned long last_pfn = nr_pages;
 	const struct e820entry *entry;
 	unsigned long num_released = 0;
+	unsigned long num_remapped = 0;
 	int i;
 
 	/*
···
 				last_pfn = xen_set_identity_and_remap_chunk(
 						list, map_size, start_pfn,
 						end_pfn, nr_pages, last_pfn,
-						&identity, &num_released);
+						&num_released, &num_remapped);
 			start = end;
 		}
 	}
 
 	*released = num_released;
+	*remapped = num_remapped;
 
-	pr_info("Set %ld page(s) to 1-1 mapping\n", identity);
 	pr_info("Released %ld page(s)\n", num_released);
 }
 
···
 	struct xen_memory_map memmap;
 	unsigned long max_pages;
 	unsigned long extra_pages = 0;
+	unsigned long remapped_pages;
 	int i;
 	int op;
 
···
 	 * underlying RAM.
 	 */
 	xen_set_identity_and_remap(map, memmap.nr_entries, max_pfn,
-				   &xen_released_pages);
+				   &xen_released_pages, &remapped_pages);
 
 	extra_pages += xen_released_pages;
+	extra_pages += remapped_pages;
 
 	/*
 	 * Clamp the amount of extra memory to a EXTRA_MEM_RATIO

arch/x86/xen/time.c

···
 
 struct xen_clock_event_device {
 	struct clock_event_device evt;
-	char *name;
+	char name[16];
 };
 static DEFINE_PER_CPU(struct xen_clock_event_device, xen_clock_events) = { .evt.irq = -1 };
 
···
 	if (evt->irq >= 0) {
 		unbind_from_irqhandler(evt->irq, NULL);
 		evt->irq = -1;
-		kfree(per_cpu(xen_clock_events, cpu).name);
-		per_cpu(xen_clock_events, cpu).name = NULL;
 	}
 }
 
 void xen_setup_timer(int cpu)
 {
-	char *name;
-	struct clock_event_device *evt;
+	struct xen_clock_event_device *xevt = &per_cpu(xen_clock_events, cpu);
+	struct clock_event_device *evt = &xevt->evt;
 	int irq;
 
-	evt = &per_cpu(xen_clock_events, cpu).evt;
 	WARN(evt->irq >= 0, "IRQ%d for CPU%d is already allocated\n", evt->irq, cpu);
 	if (evt->irq >= 0)
 		xen_teardown_timer(cpu);
 
 	printk(KERN_INFO "installing Xen timer for CPU %d\n", cpu);
 
-	name = kasprintf(GFP_KERNEL, "timer%d", cpu);
-	if (!name)
-		name = "<timer kasprintf failed>";
+	snprintf(xevt->name, sizeof(xevt->name), "timer%d", cpu);
 
 	irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
 				      IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER|
 				      IRQF_FORCE_RESUME|IRQF_EARLY_RESUME,
-				      name, NULL);
+				      xevt->name, NULL);
 	(void)xen_set_irq_priority(irq, XEN_IRQ_PRIORITY_MAX);
 
 	memcpy(evt, xen_clockevent, sizeof(*evt));
 
 	evt->cpumask = cpumask_of(cpu);
 	evt->irq = irq;
-	per_cpu(xen_clock_events, cpu).name = name;
 }
 
 
 void xen_setup_cpu_clockevents(void)
 {
-	BUG_ON(preemptible());
-
 	clockevents_register_device(this_cpu_ptr(&xen_clock_events.evt));
 }
 

drivers/Makefile

···
 obj-y				+= tty/
 obj-y				+= char/
 
-# gpu/ comes after char for AGP vs DRM startup
+# iommu/ comes before gpu as gpu are using iommu controllers
+obj-$(CONFIG_IOMMU_SUPPORT)	+= iommu/
+
+# gpu/ comes after char for AGP vs DRM startup and after iommu
 obj-y				+= gpu/
 
 obj-$(CONFIG_CONNECTOR)		+= connector/
···
 
 obj-$(CONFIG_MAILBOX)		+= mailbox/
 obj-$(CONFIG_HWSPINLOCK)	+= hwspinlock/
-obj-$(CONFIG_IOMMU_SUPPORT)	+= iommu/
 obj-$(CONFIG_REMOTEPROC)	+= remoteproc/
 obj-$(CONFIG_RPMSG)		+= rpmsg/
 

drivers/acpi/acpi_processor.c

···
 	acpi_status status;
 	int ret;
 
-	if (pr->apic_id == -1)
+	if (pr->phys_id == -1)
 		return -ENODEV;
 
 	status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta);
···
 	cpu_maps_update_begin();
 	cpu_hotplug_begin();
 
-	ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id);
+	ret = acpi_map_cpu(pr->handle, pr->phys_id, &pr->id);
 	if (ret)
 		goto out;
 
 	ret = arch_register_cpu(pr->id);
 	if (ret) {
-		acpi_unmap_lsapic(pr->id);
+		acpi_unmap_cpu(pr->id);
 		goto out;
 	}
 
···
 	union acpi_object object = { 0 };
 	struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
 	struct acpi_processor *pr = acpi_driver_data(device);
-	int apic_id, cpu_index, device_declaration = 0;
+	int phys_id, cpu_index, device_declaration = 0;
 	acpi_status status = AE_OK;
 	static int cpu0_initialized;
 	unsigned long long value;
···
 		pr->acpi_id = value;
 	}
 
-	apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id);
-	if (apic_id < 0)
-		acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n");
-	pr->apic_id = apic_id;
+	phys_id = acpi_get_phys_id(pr->handle, device_declaration, pr->acpi_id);
+	if (phys_id < 0)
+		acpi_handle_debug(pr->handle, "failed to get CPU physical ID.\n");
+	pr->phys_id = phys_id;
 
-	cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id);
+	cpu_index = acpi_map_cpuid(pr->phys_id, pr->acpi_id);
 	if (!cpu0_initialized && !acpi_has_cpu_in_madt()) {
 		cpu0_initialized = 1;
-		/* Handle UP system running SMP kernel, with no LAPIC in MADT */
+		/*
+		 * Handle UP system running SMP kernel, with no CPU
+		 * entry in MADT
+		 */
 		if ((cpu_index == -1) && (num_online_cpus() == 1))
 			cpu_index = 0;
 	}
···
 
 	/* Remove the CPU. */
 	arch_unregister_cpu(pr->id);
-	acpi_unmap_lsapic(pr->id);
+	acpi_unmap_cpu(pr->id);
 
 	cpu_hotplug_done();
 	cpu_maps_update_done();

drivers/acpi/device_pm.c

···
 
 	device->power.state = ACPI_STATE_UNKNOWN;
 	if (!acpi_device_is_present(device))
-		return 0;
+		return -ENXIO;
 
 	result = acpi_device_get_power(device, &state);
 	if (result)

drivers/acpi/int340x_thermal.c

···
 
 #include "internal.h"
 
-#define DO_ENUMERATION 0x01
+#define INT3401_DEVICE 0X01
 static const struct acpi_device_id int340x_thermal_device_ids[] = {
-	{"INT3400", DO_ENUMERATION },
-	{"INT3401"},
+	{"INT3400"},
+	{"INT3401", INT3401_DEVICE},
 	{"INT3402"},
 	{"INT3403"},
 	{"INT3404"},
···
 					const struct acpi_device_id *id)
 {
 #if defined(CONFIG_INT340X_THERMAL) || defined(CONFIG_INT340X_THERMAL_MODULE)
-	if (id->driver_data == DO_ENUMERATION)
+	acpi_create_platform_device(adev);
+#elif defined(INTEL_SOC_DTS_THERMAL) || defined(INTEL_SOC_DTS_THERMAL_MODULE)
+	/* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */
+	if (id->driver_data == INT3401_DEVICE)
 		acpi_create_platform_device(adev);
 #endif
 	return 1;

drivers/acpi/processor_core.c

···
 	unsigned long madt_end, entry;
 	static struct acpi_table_madt *madt;
 	static int read_madt;
-	int apic_id = -1;
+	int phys_id = -1;	/* CPU hardware ID */
 
 	if (!read_madt) {
 		if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
···
 	}
 
 	if (!madt)
-		return apic_id;
+		return phys_id;
 
 	entry = (unsigned long)madt;
 	madt_end = entry + madt->header.length;
···
 		struct acpi_subtable_header *header =
 			(struct acpi_subtable_header *)entry;
 		if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) {
-			if (!map_lapic_id(header, acpi_id, &apic_id))
+			if (!map_lapic_id(header, acpi_id, &phys_id))
 				break;
 		} else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) {
-			if (!map_x2apic_id(header, type, acpi_id, &apic_id))
+			if (!map_x2apic_id(header, type, acpi_id, &phys_id))
 				break;
 		} else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) {
-			if (!map_lsapic_id(header, type, acpi_id, &apic_id))
+			if (!map_lsapic_id(header, type, acpi_id, &phys_id))
 				break;
 		}
 		entry += header->length;
 	}
-	return apic_id;
+	return phys_id;
 }
 
 static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
···
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	struct acpi_subtable_header *header;
-	int apic_id = -1;
+	int phys_id = -1;
 
 	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
 		goto exit;
···
 
 	header = (struct acpi_subtable_header *)obj->buffer.pointer;
 	if (header->type == ACPI_MADT_TYPE_LOCAL_APIC)
-		map_lapic_id(header, acpi_id, &apic_id);
+		map_lapic_id(header, acpi_id, &phys_id);
 	else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC)
-		map_lsapic_id(header, type, acpi_id, &apic_id);
+		map_lsapic_id(header, type, acpi_id, &phys_id);
 	else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC)
-		map_x2apic_id(header, type, acpi_id, &apic_id);
+		map_x2apic_id(header, type, acpi_id, &phys_id);
 
 exit:
 	kfree(buffer.pointer);
-	return apic_id;
+	return phys_id;
 }
 
-int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id)
+int acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id)
 {
-	int apic_id;
+	int phys_id;
 
-	apic_id = map_mat_entry(handle, type, acpi_id);
-	if (apic_id == -1)
-		apic_id = map_madt_entry(type, acpi_id);
+	phys_id = map_mat_entry(handle, type, acpi_id);
+	if (phys_id == -1)
+		phys_id = map_madt_entry(type, acpi_id);
 
-	return apic_id;
+	return phys_id;
 }
 
-int acpi_map_cpuid(int apic_id, u32 acpi_id)
+int acpi_map_cpuid(int phys_id, u32 acpi_id)
 {
 #ifdef CONFIG_SMP
 	int i;
 #endif
 
-	if (apic_id == -1) {
+	if (phys_id == -1) {
 		/*
 		 * On UP processor, there is no _MAT or MADT table.
-		 * So above apic_id is always set to -1.
+		 * So above phys_id is always set to -1.
 		 *
 		 * BIOS may define multiple CPU handles even for UP processor.
 		 * For example,
···
 		 *     Processor (CPU3, 0x03, 0x00000410, 0x06) {}
 		 * }
 		 *
-		 * Ignores apic_id and always returns 0 for the processor
+		 * Ignores phys_id and always returns 0 for the processor
 		 * handle with acpi id 0 if nr_cpu_ids is 1.
 		 * This should be the case if SMP tables are not found.
 		 * Return -1 for other CPU's handle.
···
 		if (nr_cpu_ids <= 1 && acpi_id == 0)
 			return acpi_id;
 		else
-			return apic_id;
+			return phys_id;
 	}
 
 #ifdef CONFIG_SMP
 	for_each_possible_cpu(i) {
-		if (cpu_physical_id(i) == apic_id)
+		if (cpu_physical_id(i) == phys_id)
 			return i;
 	}
 #else
 	/* In UP kernel, only processor 0 is valid */
-	if (apic_id == 0)
-		return apic_id;
+	if (phys_id == 0)
+		return phys_id;
 #endif
 	return -1;
 }
 
 int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
 {
-	int apic_id;
+	int phys_id;
 
-	apic_id = acpi_get_apicid(handle, type, acpi_id);
+	phys_id = acpi_get_phys_id(handle, type, acpi_id);
 
-	return acpi_map_cpuid(apic_id, acpi_id);
+	return acpi_map_cpuid(phys_id, acpi_id);
 }
 EXPORT_SYMBOL_GPL(acpi_get_cpuid);

drivers/acpi/scan.c

···
 	if (device->wakeup.flags.valid)
 		acpi_power_resources_list_free(&device->wakeup.resources);
 
-	if (!device->flags.power_manageable)
+	if (!device->power.flags.power_resources)
 		return;
 
 	for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) {
···
 			device->power.flags.power_resources)
 		device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1;
 
-	if (acpi_bus_init_power(device)) {
-		acpi_free_power_resources_lists(device);
+	if (acpi_bus_init_power(device))
 		device->flags.power_manageable = 0;
-	}
 }
 
 static void acpi_bus_get_flags(struct acpi_device *device)
···
 	/* Skip devices that are not present. */
 	if (!acpi_device_is_present(device)) {
 		device->flags.visited = false;
+		device->flags.power_manageable = 0;
 		return;
 	}
 	if (device->handler)
 		goto ok;
 
 	if (!device->flags.initialized) {
-		acpi_bus_update_power(device, NULL);
+		device->flags.power_manageable =
+			device->power.states[ACPI_STATE_D0].flags.valid;
+		if (acpi_bus_init_power(device))
+			device->flags.power_manageable = 0;
+
 		device->flags.initialized = true;
 	}
 	device->flags.visited = false;

drivers/acpi/video.c

···
 		DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"),
 		},
 	},
+
+	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */
+	 .callback = video_disable_native_backlight,
+	 .ident = "Dell XPS15 L521X",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"),
+		},
+	},
 	{}
 };
 

drivers/char/ipmi/ipmi_ssif.c

···
 
 		do_gettimeofday(&t);
 		pr_info("**Enqueue %02x %02x: %ld.%6.6ld\n",
-		       msg->data[0], msg->data[1], t.tv_sec, t.tv_usec);
+		       msg->data[0], msg->data[1],
+		       (long) t.tv_sec, (long) t.tv_usec);
 	}
 }
 

drivers/gpio/gpio-dln2.c

···
 
 #define DLN2_GPIO_MAX_PINS 32
 
-struct dln2_irq_work {
-	struct work_struct work;
-	struct dln2_gpio *dln2;
-	int pin;
-	int type;
-};
-
 struct dln2_gpio {
 	struct platform_device *pdev;
 	struct gpio_chip gpio;
···
 	 */
 	DECLARE_BITMAP(output_enabled, DLN2_GPIO_MAX_PINS);
 
-	DECLARE_BITMAP(irqs_masked, DLN2_GPIO_MAX_PINS);
-	DECLARE_BITMAP(irqs_enabled, DLN2_GPIO_MAX_PINS);
-	DECLARE_BITMAP(irqs_pending, DLN2_GPIO_MAX_PINS);
-	struct dln2_irq_work *irq_work;
+	/* active IRQs - not synced to hardware */
+	DECLARE_BITMAP(unmasked_irqs, DLN2_GPIO_MAX_PINS);
+	/* active IRQS - synced to hardware */
+	DECLARE_BITMAP(enabled_irqs, DLN2_GPIO_MAX_PINS);
+	int irq_type[DLN2_GPIO_MAX_PINS];
+	struct mutex irq_lock;
 };
 
 struct dln2_gpio_pin {
···
 	return !!ret;
 }
 
-static void dln2_gpio_pin_set_out_val(struct dln2_gpio *dln2,
-				      unsigned int pin, int value)
+static int dln2_gpio_pin_set_out_val(struct dln2_gpio *dln2,
+				     unsigned int pin, int value)
 {
 	struct dln2_gpio_pin_val req = {
 		.pin = cpu_to_le16(pin),
 		.value = value,
 	};
 
-	dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_OUT_VAL, &req,
-			 sizeof(req));
+	return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_OUT_VAL, &req,
+				sizeof(req));
 }
 
 #define DLN2_GPIO_DIRECTION_IN		0
···
 static int dln2_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
 				      int value)
 {
+	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);
+	int ret;
+
+	ret = dln2_gpio_pin_set_out_val(dln2, offset, value);
+	if (ret < 0)
+		return ret;
+
 	return dln2_gpio_set_direction(chip, offset, DLN2_GPIO_DIRECTION_OUT);
 }
 
···
 				&req, sizeof(req));
 }
 
-static void dln2_irq_work(struct work_struct *w)
-{
-	struct dln2_irq_work *iw = container_of(w, struct dln2_irq_work, work);
-	struct dln2_gpio *dln2 = iw->dln2;
-	u8 type = iw->type & DLN2_GPIO_EVENT_MASK;
-
-	if (test_bit(iw->pin, dln2->irqs_enabled))
-		dln2_gpio_set_event_cfg(dln2, iw->pin, type, 0);
-	else
-		dln2_gpio_set_event_cfg(dln2, iw->pin, DLN2_GPIO_EVENT_NONE, 0);
-}
-
-static void dln2_irq_enable(struct irq_data *irqd)
+static void dln2_irq_unmask(struct irq_data *irqd)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
 	int pin = irqd_to_hwirq(irqd);
 
-	set_bit(pin, dln2->irqs_enabled);
-	schedule_work(&dln2->irq_work[pin].work);
-}
-
-static void dln2_irq_disable(struct irq_data *irqd)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
-	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
-	int pin = irqd_to_hwirq(irqd);
-
-	clear_bit(pin, dln2->irqs_enabled);
-	schedule_work(&dln2->irq_work[pin].work);
+	set_bit(pin, dln2->unmasked_irqs);
 }
 
 static void dln2_irq_mask(struct irq_data *irqd)
···
 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
 	int pin = irqd_to_hwirq(irqd);
 
-	set_bit(pin, dln2->irqs_masked);
-}
-
-static void dln2_irq_unmask(struct irq_data *irqd)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
-	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
-	struct device *dev = dln2->gpio.dev;
-	int pin = irqd_to_hwirq(irqd);
-
-	if (test_and_clear_bit(pin, dln2->irqs_pending)) {
-		int irq;
-
-		irq = irq_find_mapping(dln2->gpio.irqdomain, pin);
-		if (!irq) {
-			dev_err(dev, "pin %d not mapped to IRQ\n", pin);
-			return;
-		}
-
-		generic_handle_irq(irq);
-	}
+	clear_bit(pin, dln2->unmasked_irqs);
 }
 
 static int dln2_irq_set_type(struct irq_data *irqd, unsigned type)
···
 
 	switch (type) {
 	case IRQ_TYPE_LEVEL_HIGH:
-		dln2->irq_work[pin].type = DLN2_GPIO_EVENT_LVL_HIGH;
+		dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_HIGH;
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
-		dln2->irq_work[pin].type = DLN2_GPIO_EVENT_LVL_LOW;
+		dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_LOW;
 		break;
 	case IRQ_TYPE_EDGE_BOTH:
-		dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE;
+		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE;
 		break;
 	case IRQ_TYPE_EDGE_RISING:
-		dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE_RISING;
+		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_RISING;
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
-		dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE_FALLING;
+		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_FALLING;
 		break;
 	default:
 		return -EINVAL;
···
 	return 0;
 }
 
+static void dln2_irq_bus_lock(struct irq_data *irqd)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
+
+	mutex_lock(&dln2->irq_lock);
+}
+
+static void dln2_irq_bus_unlock(struct irq_data *irqd)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
+	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);
+	int pin = irqd_to_hwirq(irqd);
+	int enabled, unmasked;
+	unsigned type;
+	int ret;
+
+	enabled = test_bit(pin, dln2->enabled_irqs);
+	unmasked = test_bit(pin, dln2->unmasked_irqs);
+
+	if (enabled != unmasked) {
+		if (unmasked) {
+			type = dln2->irq_type[pin] & DLN2_GPIO_EVENT_MASK;
+			set_bit(pin, dln2->enabled_irqs);
+		} else {
+			type = DLN2_GPIO_EVENT_NONE;
+			clear_bit(pin, dln2->enabled_irqs);
+		}
+
+		ret = dln2_gpio_set_event_cfg(dln2, pin, type, 0);
+		if (ret)
+			dev_err(dln2->gpio.dev, "failed to set event\n");
+	}
+
+	mutex_unlock(&dln2->irq_lock);
+}
+
 static struct irq_chip dln2_gpio_irqchip = {
 	.name = "dln2-irq",
-	.irq_enable = dln2_irq_enable,
-	.irq_disable = dln2_irq_disable,
 	.irq_mask = dln2_irq_mask,
 	.irq_unmask = dln2_irq_unmask,
 	.irq_set_type = dln2_irq_set_type,
+	.irq_bus_lock = dln2_irq_bus_lock,
+	.irq_bus_sync_unlock = dln2_irq_bus_unlock,
 };
 
 static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
···
 		return;
 	}
 
-	if (!test_bit(pin, dln2->irqs_enabled))
-		return;
-	if (test_bit(pin, dln2->irqs_masked)) {
-		set_bit(pin, dln2->irqs_pending);
-		return;
-	}
-
-	switch (dln2->irq_work[pin].type) {
+	switch (dln2->irq_type[pin]) {
 	case DLN2_GPIO_EVENT_CHANGE_RISING:
 		if (event->value)
 			generic_handle_irq(irq);
···
 	struct dln2_gpio *dln2;
 	struct device *dev = &pdev->dev;
 	int pins;
-	int i, ret;
+	int ret;
 
 	pins = dln2_gpio_get_pin_count(pdev);
 	if (pins < 0) {
···
 	if (!dln2)
 		return -ENOMEM;
 
-	dln2->irq_work = devm_kcalloc(&pdev->dev, pins,
-				      sizeof(struct dln2_irq_work), GFP_KERNEL);
-	if (!dln2->irq_work)
-		return -ENOMEM;
-	for (i = 0; i < pins; i++) {
-		INIT_WORK(&dln2->irq_work[i].work, dln2_irq_work);
-		dln2->irq_work[i].pin = i;
-		dln2->irq_work[i].dln2 = dln2;
-	}
+	mutex_init(&dln2->irq_lock);
 
 	dln2->pdev = pdev;
 
···
 static int dln2_gpio_remove(struct platform_device *pdev)
 {
 	struct dln2_gpio *dln2 = platform_get_drvdata(pdev);
-	int i;
 
 	dln2_unregister_event_cb(pdev, DLN2_GPIO_CONDITION_MET_EV);
-	for (i = 0; i < dln2->gpio.ngpio; i++)
-		flush_work(&dln2->irq_work[i].work);
 	gpiochip_remove(&dln2->gpio);
 
 	return 0;

drivers/gpio/gpio-grgpio.c

···
 	err = gpiochip_add(gc);
 	if (err) {
 		dev_err(&ofdev->dev, "Could not add gpiochip\n");
-		irq_domain_remove(priv->domain);
+		if (priv->domain)
+			irq_domain_remove(priv->domain);
 		return err;
 	}
 

drivers/gpu/drm/Makefile

···
 obj-$(CONFIG_DRM_TTM)	+= ttm/
 obj-$(CONFIG_DRM_TDFX)	+= tdfx/
 obj-$(CONFIG_DRM_R128)	+= r128/
+obj-$(CONFIG_HSA_AMD) += amd/amdkfd/
 obj-$(CONFIG_DRM_RADEON)+= radeon/
 obj-$(CONFIG_DRM_MGA)	+= mga/
 obj-$(CONFIG_DRM_I810)	+= i810/
···
 obj-y			+= i2c/
 obj-y			+= panel/
 obj-y			+= bridge/
-obj-$(CONFIG_HSA_AMD) += amd/amdkfd/

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

···
 #include <uapi/linux/kfd_ioctl.h>
 #include <linux/time.h>
 #include <linux/mm.h>
-#include <linux/uaccess.h>
 #include <uapi/asm-generic/mman-common.h>
 #include <asm/processor.h>
 #include "kfd_priv.h"
···
 	return 0;
 }
 
-static long kfd_ioctl_get_version(struct file *filep, struct kfd_process *p,
-					void __user *arg)
+static int kfd_ioctl_get_version(struct file *filep, struct kfd_process *p,
+					void *data)
 {
-	struct kfd_ioctl_get_version_args args;
+	struct kfd_ioctl_get_version_args *args = data;
 	int err = 0;
 
-	args.major_version = KFD_IOCTL_MAJOR_VERSION;
-	args.minor_version = KFD_IOCTL_MINOR_VERSION;
-
-	if (copy_to_user(arg, &args, sizeof(args)))
-		err = -EFAULT;
+	args->major_version = KFD_IOCTL_MAJOR_VERSION;
+	args->minor_version = KFD_IOCTL_MINOR_VERSION;
 
 	return err;
 }
···
 	return 0;
 }
 
-static long kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p,
-					void __user *arg)
+static int kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p,
+					void *data)
 {
-	struct kfd_ioctl_create_queue_args args;
+	struct kfd_ioctl_create_queue_args *args = data;
 	struct kfd_dev *dev;
 	int err = 0;
 	unsigned int queue_id;
···
 
 	memset(&q_properties, 0, sizeof(struct queue_properties));
 
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
-
 	pr_debug("kfd: creating queue ioctl\n");
 
-	err = set_queue_properties_from_user(&q_properties, &args);
+	err = set_queue_properties_from_user(&q_properties, args);
 	if (err)
 		return err;
 
-	dev = kfd_device_by_id(args.gpu_id);
+	dev = kfd_device_by_id(args->gpu_id);
 	if (dev == NULL)
 		return -EINVAL;
 
···
 
 	pdd = kfd_bind_process_to_device(dev, p);
 	if (IS_ERR(pdd)) {
-		err = PTR_ERR(pdd);
+		err = -ESRCH;
 		goto err_bind_process;
 	}
 
···
 	if (err != 0)
 		goto err_create_queue;
 
-	args.queue_id = queue_id;
+	args->queue_id = queue_id;
 
 	/* Return gpu_id as doorbell offset for mmap usage */
-	args.doorbell_offset = args.gpu_id << PAGE_SHIFT;
-
-	if (copy_to_user(arg, &args, sizeof(args))) {
-		err = -EFAULT;
-		goto err_copy_args_out;
-	}
+	args->doorbell_offset = args->gpu_id << PAGE_SHIFT;
 
 	mutex_unlock(&p->mutex);
 
-	pr_debug("kfd: queue id %d was created successfully\n", args.queue_id);
+	pr_debug("kfd: queue id %d was created successfully\n", args->queue_id);
 
 	pr_debug("ring buffer address == 0x%016llX\n",
-			args.ring_base_address);
+			args->ring_base_address);
 
 	pr_debug("read ptr address    == 0x%016llX\n",
-			args.read_pointer_address);
+			args->read_pointer_address);
 
 	pr_debug("write ptr address   == 0x%016llX\n",
-			args.write_pointer_address);
+			args->write_pointer_address);
 
 	return 0;
 
-err_copy_args_out:
-	pqm_destroy_queue(&p->pqm, queue_id);
 err_create_queue:
 err_bind_process:
 	mutex_unlock(&p->mutex);
···
 }
 
 static int kfd_ioctl_destroy_queue(struct file *filp, struct kfd_process *p,
-					void __user *arg)
+					void *data)
 {
 	int retval;
-	struct kfd_ioctl_destroy_queue_args args;
-
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
+	struct kfd_ioctl_destroy_queue_args *args = data;
 
 	pr_debug("kfd: destroying queue id %d for PASID %d\n",
-				args.queue_id,
+				args->queue_id,
 				p->pasid);
 
 	mutex_lock(&p->mutex);
 
-	retval = pqm_destroy_queue(&p->pqm, args.queue_id);
+	retval = pqm_destroy_queue(&p->pqm, args->queue_id);
 
 	mutex_unlock(&p->mutex);
 	return retval;
 }
 
 static int kfd_ioctl_update_queue(struct file *filp, struct kfd_process *p,
-					void __user *arg)
+					void *data)
 {
 	int retval;
-	struct kfd_ioctl_update_queue_args args;
+	struct kfd_ioctl_update_queue_args *args = data;
 	struct queue_properties properties;
 
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
-
-	if (args.queue_percentage > KFD_MAX_QUEUE_PERCENTAGE) {
+	if (args->queue_percentage > KFD_MAX_QUEUE_PERCENTAGE) {
 		pr_err("kfd: queue percentage must be between 0 to KFD_MAX_QUEUE_PERCENTAGE\n");
 		return -EINVAL;
 	}
 
-	if (args.queue_priority > KFD_MAX_QUEUE_PRIORITY) {
+	if (args->queue_priority > KFD_MAX_QUEUE_PRIORITY) {
 		pr_err("kfd: queue priority must be between 0 to KFD_MAX_QUEUE_PRIORITY\n");
 		return -EINVAL;
 	}
 
-	if ((args.ring_base_address) &&
+	if ((args->ring_base_address) &&
 		(!access_ok(VERIFY_WRITE,
-			(const void __user *) args.ring_base_address,
+			(const void __user *) args->ring_base_address,
 			sizeof(uint64_t)))) {
 		pr_err("kfd: can't access ring base address\n");
 		return -EFAULT;
 	}
 
-	if (!is_power_of_2(args.ring_size) && (args.ring_size != 0)) {
+	if (!is_power_of_2(args->ring_size) && (args->ring_size != 0)) {
 		pr_err("kfd: ring size must be a power of 2 or 0\n");
 		return -EINVAL;
 	}
 
-	properties.queue_address = args.ring_base_address;
-	properties.queue_size = args.ring_size;
-	properties.queue_percent = args.queue_percentage;
-	properties.priority = args.queue_priority;
+	properties.queue_address = args->ring_base_address;
+	properties.queue_size = args->ring_size;
+	properties.queue_percent = args->queue_percentage;
+	properties.priority = args->queue_priority;
 
 	pr_debug("kfd: updating queue id %d for PASID %d\n",
-			args.queue_id, p->pasid);
+			args->queue_id, p->pasid);
 
 	mutex_lock(&p->mutex);
 
-	retval = pqm_update_queue(&p->pqm, args.queue_id, &properties);
+	retval = pqm_update_queue(&p->pqm, args->queue_id, &properties);
 
 	mutex_unlock(&p->mutex);
 
 	return retval;
 }
 
-static long kfd_ioctl_set_memory_policy(struct file *filep,
-				struct kfd_process *p, void __user *arg)
+static int kfd_ioctl_set_memory_policy(struct file *filep,
+					struct kfd_process *p, void *data)
 {
-	struct kfd_ioctl_set_memory_policy_args args;
+	struct kfd_ioctl_set_memory_policy_args *args = data;
 	struct kfd_dev *dev;
 	int err = 0;
 	struct kfd_process_device *pdd;
 	enum cache_policy default_policy, alternate_policy;
 
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
-
-	if (args.default_policy != KFD_IOC_CACHE_POLICY_COHERENT
-	    && args.default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
+	if (args->default_policy != KFD_IOC_CACHE_POLICY_COHERENT
+	    && args->default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
 		return -EINVAL;
 	}
 
-	if (args.alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT
-	    && args.alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
+	if (args->alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT
+	    && args->alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) {
 		return -EINVAL;
 	}
 
-	dev = kfd_device_by_id(args.gpu_id);
+	dev = kfd_device_by_id(args->gpu_id);
 	if (dev == NULL)
 		return -EINVAL;
 
···
 
 	pdd = kfd_bind_process_to_device(dev, p);
 	if (IS_ERR(pdd)) {
-		err = PTR_ERR(pdd);
+		err = -ESRCH;
 		goto out;
 	}
 
-	default_policy = (args.default_policy == KFD_IOC_CACHE_POLICY_COHERENT)
+	default_policy = (args->default_policy == KFD_IOC_CACHE_POLICY_COHERENT)
 			 ? cache_policy_coherent : cache_policy_noncoherent;
 
 	alternate_policy =
-		(args.alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT)
+		(args->alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT)
 		   ? cache_policy_coherent : cache_policy_noncoherent;
 
 	if (!dev->dqm->set_cache_memory_policy(dev->dqm,
 				&pdd->qpd,
 				default_policy,
 				alternate_policy,
-				(void __user *)args.alternate_aperture_base,
-				args.alternate_aperture_size))
+				(void __user *)args->alternate_aperture_base,
+				args->alternate_aperture_size))
 		err = -EINVAL;
 
 out:
···
 	return err;
 }
 
-static long kfd_ioctl_get_clock_counters(struct file *filep,
-				struct kfd_process *p, void __user *arg)
+static int kfd_ioctl_get_clock_counters(struct file *filep,
+				struct kfd_process *p, void *data)
 {
-	struct kfd_ioctl_get_clock_counters_args args;
+	struct kfd_ioctl_get_clock_counters_args *args = data;
 	struct kfd_dev *dev;
 	struct timespec time;
 
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
-
-	dev = kfd_device_by_id(args.gpu_id);
+	dev = kfd_device_by_id(args->gpu_id);
 	if (dev == NULL)
 		return -EINVAL;
 
 	/* Reading GPU clock counter from KGD */
-	args.gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd);
+	args->gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd);
 
 	/* No access to rdtsc. Using raw monotonic time */
 	getrawmonotonic(&time);
-	args.cpu_clock_counter = (uint64_t)timespec_to_ns(&time);
+	args->cpu_clock_counter = (uint64_t)timespec_to_ns(&time);
 
 	get_monotonic_boottime(&time);
-	args.system_clock_counter = (uint64_t)timespec_to_ns(&time);
+	args->system_clock_counter = (uint64_t)timespec_to_ns(&time);
 
 	/* Since the counter is in nano-seconds we use 1GHz frequency */
-	args.system_clock_freq = 1000000000;
-
-	if (copy_to_user(arg, &args, sizeof(args)))
-		return -EFAULT;
+	args->system_clock_freq = 1000000000;
 
 	return 0;
 }
 
 
 static int kfd_ioctl_get_process_apertures(struct file *filp,
-				struct kfd_process *p, void __user *arg)
+				struct kfd_process *p, void *data)
 {
-	struct kfd_ioctl_get_process_apertures_args args;
+	struct kfd_ioctl_get_process_apertures_args *args = data;
 	struct kfd_process_device_apertures *pAperture;
 	struct kfd_process_device *pdd;
 
 	dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid);
 
-	if (copy_from_user(&args, arg, sizeof(args)))
-		return -EFAULT;
-
-	args.num_of_nodes = 0;
+	args->num_of_nodes = 0;
 
 	mutex_lock(&p->mutex);
 
···
 		/* Run over all pdd of the process */
 		pdd = kfd_get_first_process_device_data(p);
 		do {
-			pAperture = &args.process_apertures[args.num_of_nodes];
+			pAperture =
+				&args->process_apertures[args->num_of_nodes];
 			pAperture->gpu_id = pdd->dev->id;
 			pAperture->lds_base = pdd->lds_base;
 			pAperture->lds_limit = pdd->lds_limit;
···
 			pAperture->scratch_limit = pdd->scratch_limit;
 
 			dev_dbg(kfd_device,
-				"node id %u\n", args.num_of_nodes);
+				"node id %u\n", args->num_of_nodes);
 			dev_dbg(kfd_device,
 				"gpu id %u\n", pdd->dev->id);
 			dev_dbg(kfd_device,
···
 			dev_dbg(kfd_device,
 				"scratch_limit %llX\n", pdd->scratch_limit);
 
-			args.num_of_nodes++;
+			args->num_of_nodes++;
 		} while ((pdd = kfd_get_next_process_device_data(p, pdd)) != NULL &&
-				(args.num_of_nodes < NUM_OF_SUPPORTED_GPUS));
+				(args->num_of_nodes < NUM_OF_SUPPORTED_GPUS));
 	}
 
 	mutex_unlock(&p->mutex);
 
-	if (copy_to_user(arg, &args, sizeof(args)))
-		return -EFAULT;
-
 	return 0;
 }
+
+#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \
+	[_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0, .name = #ioctl}
+
+/** Ioctl table */
+static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = {
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_VERSION,
+			kfd_ioctl_get_version, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_CREATE_QUEUE,
+			kfd_ioctl_create_queue, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_DESTROY_QUEUE,
+			kfd_ioctl_destroy_queue, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_MEMORY_POLICY,
+			kfd_ioctl_set_memory_policy, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_CLOCK_COUNTERS,
+			kfd_ioctl_get_clock_counters, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_PROCESS_APERTURES,
+			kfd_ioctl_get_process_apertures, 0),
+
+	AMDKFD_IOCTL_DEF(AMDKFD_IOC_UPDATE_QUEUE,
+			kfd_ioctl_update_queue, 0),
+};
+
+#define AMDKFD_CORE_IOCTL_COUNT	ARRAY_SIZE(amdkfd_ioctls)
 
 static long kfd_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 {
 	struct kfd_process *process;
-	long err = -EINVAL;
+	amdkfd_ioctl_t *func;
+	const struct amdkfd_ioctl_desc *ioctl = NULL;
+	unsigned int nr = _IOC_NR(cmd);
+	char stack_kdata[128];
+	char *kdata = NULL;
+	unsigned int usize, asize;
+	int retcode = -EINVAL;
 
-	dev_dbg(kfd_device,
-		"ioctl cmd 0x%x (#%d), arg 0x%lx\n",
-		cmd, _IOC_NR(cmd), arg);
+	if (nr >= AMDKFD_CORE_IOCTL_COUNT)
+		goto err_i1;
+
+	if ((nr >= AMDKFD_COMMAND_START) && (nr < AMDKFD_COMMAND_END)) {
+		u32 amdkfd_size;
+
+		ioctl = &amdkfd_ioctls[nr];
+
+		amdkfd_size = _IOC_SIZE(ioctl->cmd);
+		usize = asize = _IOC_SIZE(cmd);
+		if (amdkfd_size > asize)
+			asize = amdkfd_size;
+
+		cmd = ioctl->cmd;
+	} else
+		goto err_i1;
+
+	dev_dbg(kfd_device, "ioctl cmd 0x%x (#%d), arg 0x%lx\n", cmd, nr, arg);
 
 	process = kfd_get_process(current);
-	if (IS_ERR(process))
-		return PTR_ERR(process);
-
-	switch (cmd) {
-	case KFD_IOC_GET_VERSION:
-		err = kfd_ioctl_get_version(filep, process, (void __user *)arg);
-		break;
-	case KFD_IOC_CREATE_QUEUE:
-		err = kfd_ioctl_create_queue(filep, process,
-						(void __user *)arg);
-		break;
-
-	case KFD_IOC_DESTROY_QUEUE:
-		err = kfd_ioctl_destroy_queue(filep, process,
-						(void __user *)arg);
-		break;
-
-	case KFD_IOC_SET_MEMORY_POLICY:
-		err = kfd_ioctl_set_memory_policy(filep, process,
-						(void __user *)arg);
-		break;
-
-	case KFD_IOC_GET_CLOCK_COUNTERS:
-		err = kfd_ioctl_get_clock_counters(filep, process,
-						(void __user *)arg);
-		break;
-
-	case KFD_IOC_GET_PROCESS_APERTURES:
-		err = kfd_ioctl_get_process_apertures(filep, process,
-						(void __user *)arg);
-		break;
-
-	case KFD_IOC_UPDATE_QUEUE:
-		err = kfd_ioctl_update_queue(filep, process,
-						(void __user *)arg);
-		break;
-
-	default:
-		dev_err(kfd_device,
-			"unknown ioctl cmd 0x%x, arg 0x%lx)\n",
-			cmd, arg);
-		err = -EINVAL;
-		break;
+	if (IS_ERR(process)) {
+		dev_dbg(kfd_device, "no process\n");
+		goto err_i1;
 	}
 
-	if (err < 0)
-		dev_err(kfd_device,
-			"ioctl error %ld for ioctl cmd 0x%x (#%d)\n",
-			err, cmd, _IOC_NR(cmd));
+	/* Do not trust userspace, use our own definition */
+	func = ioctl->func;
 
-	return err;
+	if (unlikely(!func)) {
+		dev_dbg(kfd_device, "no function\n");
+		retcode = -EINVAL;
+		goto err_i1;
+	}
+
+	if (cmd & (IOC_IN | IOC_OUT)) {
+		if (asize <= sizeof(stack_kdata)) {
+			kdata = stack_kdata;
+		} else {
+			kdata = kmalloc(asize, GFP_KERNEL);
+			if (!kdata) {
+				retcode = -ENOMEM;
+				goto err_i1;
+			}
+		}
+		if (asize > usize)
+			memset(kdata + usize, 0, asize - usize);
+	}
+
+	if (cmd & IOC_IN) {
+		if (copy_from_user(kdata, (void __user *)arg, usize) != 0) {
+			retcode = -EFAULT;
+			goto err_i1;
+		}
+	} else if (cmd & IOC_OUT) {
+		memset(kdata, 0, usize);
+	}
+
+	retcode = func(filep, process, kdata);
+
+	if (cmd & IOC_OUT)
+		if (copy_to_user((void __user *)arg, kdata, usize) != 0)
+			retcode = -EFAULT;
+
+err_i1:
+	if (!ioctl)
+		dev_dbg(kfd_device, "invalid ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n",
+			  task_pid_nr(current), cmd, nr);
+
+	if (kdata != stack_kdata)
+		kfree(kdata);
+
+	if (retcode)
+		dev_dbg(kfd_device, "ret = %d\n", retcode);
+
+	return retcode;
 }
 
 static int kfd_mmap(struct file *filp, struct vm_area_struct *vma)

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

···
 {
 	int bit = qpd->vmid - KFD_VMID_START_OFFSET;
 
+	/* Release the vmid mapping */
+	set_pasid_vmid_mapping(dqm, 0, qpd->vmid);
+
 	set_bit(bit, (unsigned long *)&dqm->vmid_bitmap);
 	qpd->vmid = 0;
 	q->properties.vmid = 0;
···
 		return retval;
 	}
 
+	pr_debug("kfd: loading mqd to hqd on pipe (%d) queue (%d)\n",
+			q->pipe,
+			q->queue);
+
+	retval = mqd->load_mqd(mqd, q->mqd, q->pipe,
+			q->queue, q->properties.write_ptr);
+	if (retval != 0) {
+		deallocate_hqd(dqm, q);
+		mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
+		return retval;
+	}
+
 	return 0;
 }
 
···
 {
 	int retval;
 	struct mqd_manager *mqd;
+	bool prev_active = false;
 
 	BUG_ON(!dqm || !q || !q->mqd);
 
···
 		return -ENOMEM;
 	}
 
-	retval = mqd->update_mqd(mqd, q->mqd, &q->properties);
 	if (q->properties.is_active == true)
+		prev_active = true;
+
+	/*
+	 *
+	 * check active state vs. the previous state
+	 * and modify counter accordingly
+	 */
+	retval = mqd->update_mqd(mqd, q->mqd, &q->properties);
+	if ((q->properties.is_active == true) && (prev_active == false))
 		dqm->queue_count++;
-	else
+	else if ((q->properties.is_active == false) && (prev_active == true))
 		dqm->queue_count--;
 
 	if (sched_policy != KFD_SCHED_POLICY_NO_HWS)

drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c

···
 			uint32_t queue_id)
 {
 
-	return kfd2kgd->hqd_is_occupies(mm->dev->kgd, queue_address,
+	return kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
 					pipe_id, queue_id);
 
 }

drivers/gpu/drm/amd/amdkfd/kfd_pasid.c

···
 {
 	pasid_limit = max_num_of_processes;
 
-	pasid_bitmap = kzalloc(BITS_TO_LONGS(pasid_limit), GFP_KERNEL);
+	pasid_bitmap = kcalloc(BITS_TO_LONGS(pasid_limit), sizeof(long), GFP_KERNEL);
 	if (!pasid_bitmap)
 		return -ENOMEM;
 

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

···
 	bool is_32bit_user_mode;
 };
 
+/**
+ * Ioctl function type.
+ *
+ * \param filep pointer to file structure.
+ * \param p amdkfd process pointer.
+ * \param data pointer to arg that was copied from user.
+ */
+typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p,
+				void *data);
+
+struct amdkfd_ioctl_desc {
+	unsigned int cmd;
+	int flags;
+	amdkfd_ioctl_t *func;
+	unsigned int cmd_drv;
+	const char *name;
+};
+
 void kfd_process_create_wq(void);
 void kfd_process_destroy_wq(void);
 struct kfd_process *kfd_create_process(const struct task_struct *);

drivers/gpu/drm/amd/amdkfd/kfd_topology.c

···
 	uint32_t i = 0;
 
 	list_for_each_entry(dev, &topology_device_list, list) {
-		ret = kfd_build_sysfs_node_entry(dev, 0);
+		ret = kfd_build_sysfs_node_entry(dev, i);
 		if (ret < 0)
 			return ret;
 		i++;

drivers/gpu/drm/amd/include/kgd_kfd_interface.h

···
 	int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 			uint32_t queue_id, uint32_t __user *wptr);
 
-	bool (*hqd_is_occupies)(struct kgd_dev *kgd, uint64_t queue_address,
+	bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address,
 				uint32_t pipe_id, uint32_t queue_id);
 
 	int (*hqd_destroy)(struct kgd_dev *kgd, uint32_t reset_type,

drivers/gpu/drm/i915/i915_drv.h

···
 	 */
 	struct workqueue_struct *dp_wq;
 
-	uint32_t bios_vgacntr;
-
 	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
 	struct {
 		int (*do_execbuf)(struct drm_device *dev, struct drm_file *file,

drivers/gpu/drm/i915/i915_gem.c

···
 i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 		      struct drm_file *file)
 {
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_gem_pwrite *args = data;
 	struct drm_i915_gem_object *obj;
 	int ret;
···
 			return -EFAULT;
 	}
 
+	intel_runtime_pm_get(dev_priv);
+
 	ret = i915_mutex_lock_interruptible(dev);
 	if (ret)
-		return ret;
+		goto put_rpm;
 
 	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
 	if (&obj->base == NULL) {
···
 	drm_gem_object_unreference(&obj->base);
 unlock:
 	mutex_unlock(&dev->struct_mutex);
+put_rpm:
+	intel_runtime_pm_put(dev_priv);
+
 	return ret;
 }
 

drivers/gpu/drm/i915/i915_irq.c

···
 	if ((iir & flip_pending) == 0)
 		goto check_page_flip;
 
-	intel_prepare_page_flip(dev, plane);
-
 	/* We detect FlipDone by looking for the change in PendingFlip from '1'
 	 * to '0' on the following vblank, i.e. IIR has the Pendingflip
 	 * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
···
 	if (I915_READ16(ISR) & flip_pending)
 		goto check_page_flip;
 
+	intel_prepare_page_flip(dev, plane);
 	intel_finish_page_flip(dev, pipe);
 	return true;
 
···
 	if ((iir & flip_pending) == 0)
 		goto check_page_flip;
 
-	intel_prepare_page_flip(dev, plane);
-
 	/* We detect FlipDone by looking for the change in PendingFlip from '1'
 	 * to '0' on the following vblank, i.e. IIR has the Pendingflip
 	 * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
···
 	if (I915_READ(ISR) & flip_pending)
 		goto check_page_flip;
 
+	intel_prepare_page_flip(dev, plane);
 	intel_finish_page_flip(dev, pipe);
 	return true;
 

drivers/gpu/drm/i915/intel_display.c

···
 	vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
 	udelay(300);
 
-	/*
-	 * Fujitsu-Siemens Lifebook S6010 (830) has problems resuming
-	 * from S3 without preserving (some of?) the other bits.
-	 */
-	I915_WRITE(vga_reg, dev_priv->bios_vgacntr | VGA_DISP_DISABLE);
+	I915_WRITE(vga_reg, VGA_DISP_DISABLE);
 	POSTING_READ(vga_reg);
 }
 
···
 
 	intel_shared_dpll_init(dev);
 
-	/* save the BIOS value before clobbering it */
-	dev_priv->bios_vgacntr = I915_READ(i915_vgacntrl_reg(dev));
 	/* Just disable it once at startup */
 	i915_disable_vga(dev);
 	intel_setup_outputs(dev);

drivers/gpu/drm/i915/intel_runtime_pm.c

···
 		vlv_power_sequencer_reset(dev_priv);
 }
 
-static void check_power_well_state(struct drm_i915_private *dev_priv,
-				   struct i915_power_well *power_well)
-{
-	bool enabled = power_well->ops->is_enabled(dev_priv, power_well);
-
-	if (power_well->always_on || !i915.disable_power_well) {
-		if (!enabled)
-			goto mismatch;
-
-		return;
-	}
-
-	if (enabled != (power_well->count > 0))
-		goto mismatch;
-
-	return;
-
-mismatch:
-	WARN(1, "state mismatch for '%s' (always_on %d hw state %d use-count %d disable_power_well %d\n",
-		  power_well->name, power_well->always_on, enabled,
-		  power_well->count, i915.disable_power_well);
-}
-
 /**
  * intel_display_power_get - grab a power domain reference
  * @dev_priv: i915 device instance
···
 			power_well->ops->enable(dev_priv, power_well);
 			power_well->hw_enabled = true;
 		}
-
-		check_power_well_state(dev_priv, power_well);
 	}
 
 	power_domains->domain_use_count[domain]++;
···
 			power_well->hw_enabled = false;
 			power_well->ops->disable(dev_priv, power_well);
 		}
-
-		check_power_well_state(dev_priv, power_well);
 	}
 
 	mutex_unlock(&power_domains->lock);

drivers/gpu/drm/nouveau/core/core/event.c

···
 void
 nvkm_event_put(struct nvkm_event *event, u32 types, int index)
 {
-	BUG_ON(!spin_is_locked(&event->refs_lock));
+	assert_spin_locked(&event->refs_lock);
 	while (types) {
 		int type = __ffs(types); types &= ~(1 << type);
 		if (--event->refs[index * event->types_nr + type] == 0) {
···
 void
 nvkm_event_get(struct nvkm_event *event, u32 types, int index)
 {
-	BUG_ON(!spin_is_locked(&event->refs_lock));
+	assert_spin_locked(&event->refs_lock);
 	while (types) {
 		int type = __ffs(types); types &= ~(1 << type);
 		if (++event->refs[index * event->types_nr + type] == 1) {

drivers/gpu/drm/nouveau/core/core/notify.c

···
 	struct nvkm_event *event = notify->event;
 	unsigned long flags;
 
-	BUG_ON(!spin_is_locked(&event->list_lock));
+	assert_spin_locked(&event->list_lock);
 	BUG_ON(size != notify->size);
 
 	spin_lock_irqsave(&event->refs_lock, flags);

drivers/gpu/drm/nouveau/core/engine/device/nve0.c

···
 		device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
 		device->oclass[NVDEV_ENGINE_PERFMON] = &nvf0_perfmon_oclass;
 		break;
+	case 0x106:
+		device->cname = "GK208B";
+		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
+		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
+		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
+		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
+		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
+		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
+		device->oclass[NVDEV_SUBDEV_DEVINIT] =  nvc0_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] =  gk20a_mc_oclass;
+		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
+		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
+		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
+		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
+		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
+		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
+		device->oclass[NVDEV_SUBDEV_BAR    ] = &nvc0_bar_oclass;
+		device->oclass[NVDEV_SUBDEV_PWR    ] =  nv108_pwr_oclass;
+		device->oclass[NVDEV_SUBDEV_VOLT   ] = &nv40_volt_oclass;
+		device->oclass[NVDEV_ENGINE_DMAOBJ ] =  nvd0_dmaeng_oclass;
+		device->oclass[NVDEV_ENGINE_FIFO   ] =  nv108_fifo_oclass;
+		device->oclass[NVDEV_ENGINE_SW     ] =  nvc0_software_oclass;
+		device->oclass[NVDEV_ENGINE_GR     ] =  nv108_graph_oclass;
+		device->oclass[NVDEV_ENGINE_DISP   ] =  nvf0_disp_oclass;
+		device->oclass[NVDEV_ENGINE_COPY0  ] = &nve0_copy0_oclass;
+		device->oclass[NVDEV_ENGINE_COPY1  ] = &nve0_copy1_oclass;
+		device->oclass[NVDEV_ENGINE_COPY2  ] = &nve0_copy2_oclass;
+		device->oclass[NVDEV_ENGINE_BSP    ] = &nve0_bsp_oclass;
+		device->oclass[NVDEV_ENGINE_VP     ] = &nve0_vp_oclass;
+		device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
+		break;
 	case 0x108:
 		device->cname = "GK208";
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;

drivers/gpu/drm/nouveau/core/subdev/bios/shadowramin.c

···
 pramin_fini(void *data)
 {
 	struct priv *priv = data;
-	nv_wr32(priv->bios, 0x001700, priv->bar0);
-	kfree(priv);
+	if (priv) {
+		nv_wr32(priv->bios, 0x001700, priv->bar0);
+		kfree(priv);
+	}
 }
 
 static void *

drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c

···
 
 #include "nv50.h"
 
+struct nvaa_ram_priv {
+	struct nouveau_ram base;
+	u64 poller_base;
+};
+
 static int
 nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	      struct nouveau_oclass *oclass, void *data, u32 datasize,
 	      struct nouveau_object **pobject)
 {
-	const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
-	const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
+	u32 rsvd_head = ( 256 * 1024); /* vga memory */
+	u32 rsvd_tail = (1024 * 1024); /* vbios etc */
 	struct nouveau_fb *pfb = nouveau_fb(parent);
-	struct nouveau_ram *ram;
+	struct nvaa_ram_priv *priv;
 	int ret;
 
-	ret = nouveau_ram_create(parent, engine, oclass, &ram);
-	*pobject = nv_object(ram);
+	ret = nouveau_ram_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
 	if (ret)
 		return ret;
 
-	ram->size = nv_rd32(pfb, 0x10020c);
-	ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32);
+	priv->base.type   = NV_MEM_TYPE_STOLEN;
+	priv->base.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
+	priv->base.size   = (u64)nv_rd32(pfb, 0x100e14) << 12;
 
-	ret = nouveau_mm_init(&pfb->vram, rsvd_head, (ram->size >> 12) -
-			      (rsvd_head + rsvd_tail), 1);
+	rsvd_tail += 0x1000;
+	priv->poller_base = priv->base.size - rsvd_tail;
+
+	ret = nouveau_mm_init(&pfb->vram, rsvd_head >> 12,
+			      (priv->base.size  - (rsvd_head + rsvd_tail)) >> 12,
+			      1);
 	if (ret)
 		return ret;
 
-	ram->type   = NV_MEM_TYPE_STOLEN;
-	ram->stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
-	ram->get = nv50_ram_get;
-	ram->put = nv50_ram_put;
+	priv->base.get = nv50_ram_get;
+	priv->base.put = nv50_ram_put;
+	return 0;
+}
+
+static int
+nvaa_ram_init(struct nouveau_object *object)
+{
+	struct nouveau_fb *pfb = nouveau_fb(object);
+	struct nvaa_ram_priv *priv = (void *)object;
+	int ret;
+	u64 dniso, hostnb, flush;
+
+	ret = nouveau_ram_init(&priv->base);
+	if (ret)
+		return ret;
+
+	dniso  = ((priv->base.size - (priv->poller_base + 0x00)) >> 5) - 1;
+	hostnb = ((priv->base.size - (priv->poller_base + 0x20)) >> 5) - 1;
+	flush  = ((priv->base.size - (priv->poller_base + 0x40)) >> 5) - 1;
+
+	/* Enable NISO poller for various clients and set their associated
+	 * read address, only for MCP77/78 and MCP79/7A. (fd#25701)
+	 */
+	nv_wr32(pfb, 0x100c18, dniso);
+	nv_mask(pfb, 0x100c14, 0x00000000, 0x00000001);
+	nv_wr32(pfb, 0x100c1c, hostnb);
+	nv_mask(pfb, 0x100c14, 0x00000000, 0x00000002);
+	nv_wr32(pfb, 0x100c24, flush);
+	nv_mask(pfb, 0x100c14, 0x00000000, 0x00010000);
+
 	return 0;
 }
 
···
 	.ofuncs = &(struct nouveau_ofuncs) {
 		.ctor = nvaa_ram_ctor,
 		.dtor = _nouveau_ram_dtor,
-		.init = _nouveau_ram_init,
+		.init = nvaa_ram_init,
 		.fini = _nouveau_ram_fini,
 	},
 };

drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c

···
 
 #include "nv04.h"
 
-static void
-nv4c_mc_msi_rearm(struct nouveau_mc *pmc)
-{
-	struct nv04_mc_priv *priv = (void *)pmc;
-	nv_wr08(priv, 0x088050, 0xff);
-}
-
 struct nouveau_oclass *
 nv4c_mc_oclass = &(struct nouveau_mc_oclass) {
 	.base.handle = NV_SUBDEV(MC, 0x4c),
···
 		.fini = _nouveau_mc_fini,
 	},
 	.intr = nv04_mc_intr,
-	.msi_rearm = nv4c_mc_msi_rearm,
 }.base;

drivers/gpu/drm/nouveau/nouveau_bo.c

···
 	 * so use the DMA API for them.
 	 */
 	if (!nv_device_is_cpu_coherent(device) &&
-	    ttm->caching_state == tt_uncached)
+	    ttm->caching_state == tt_uncached) {
 		ttm_dma_unpopulate(ttm_dma, dev->dev);
+		return;
+	}
 
 #if __OS_HAS_AGP
 	if (drm->agp.stat == ENABLED) {

drivers/gpu/drm/nouveau/nouveau_gem.c

···
 nouveau_gem_object_del(struct drm_gem_object *gem)
 {
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
+	struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 	struct ttm_buffer_object *bo = &nvbo->bo;
+	struct device *dev = drm->dev->dev;
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (WARN_ON(ret < 0 && ret != -EACCES))
+		return;
 
 	if (gem->import_attach)
 		drm_prime_gem_destroy(gem, nvbo->bo.sg);
···
 	/* reset filp so nouveau_bo_del_ttm() can test for it */
 	gem->filp = NULL;
 	ttm_bo_unref(&bo);
+
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
 }
 
 int
···
 {
 	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
+	struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
 	struct nouveau_vma *vma;
+	struct device *dev = drm->dev->dev;
 	int ret;
 
 	if (!cli->vm)
···
 			goto out;
 		}
 
-		ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
-		if (ret) {
-			kfree(vma);
+		ret = pm_runtime_get_sync(dev);
+		if (ret < 0 && ret != -EACCES)
 			goto out;
-		}
+
+		ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
+		if (ret)
+			kfree(vma);
+
+		pm_runtime_mark_last_busy(dev);
+		pm_runtime_put_autosuspend(dev);
 	} else {
 		vma->refcount++;
 	}
···
 {
 	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
+	struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
+	struct device *dev = drm->dev->dev;
 	struct nouveau_vma *vma;
 	int ret;
 
···
 
 	vma = nouveau_bo_vma_find(nvbo, cli->vm);
 	if (vma) {
-		if (--vma->refcount == 0)
-			nouveau_gem_object_unmap(nvbo, vma);
+		if (--vma->refcount == 0) {
+			ret = pm_runtime_get_sync(dev);
+			if (!WARN_ON(ret < 0 && ret != -EACCES)) {
+				nouveau_gem_object_unmap(nvbo, vma);
+				pm_runtime_mark_last_busy(dev);
+				pm_runtime_put_autosuspend(dev);
+			}
+		}
 	}
 	ttm_bo_unreserve(&nvbo->bo);
 }

drivers/gpu/drm/radeon/atombios_crtc.c

···
 				return pll;
 		}
 		/* otherwise, pick one of the plls */
-		if ((rdev->family == CHIP_KAVERI) ||
-		    (rdev->family == CHIP_KABINI) ||
+		if ((rdev->family == CHIP_KABINI) ||
 		    (rdev->family == CHIP_MULLINS)) {
-			/* KB/KV/ML has PPLL1 and PPLL2 */
+			/* KB/ML has PPLL1 and PPLL2 */
 			pll_in_use = radeon_get_pll_use_mask(crtc);
 			if (!(pll_in_use & (1 << ATOM_PPLL2)))
 				return ATOM_PPLL2;
···
 			DRM_ERROR("unable to allocate a PPLL\n");
 			return ATOM_PPLL_INVALID;
 		} else {
-			/* CI has PPLL0, PPLL1, and PPLL2 */
+			/* CI/KV has PPLL0, PPLL1, and PPLL2 */
 			pll_in_use = radeon_get_pll_use_mask(crtc);
 			if (!(pll_in_use & (1 << ATOM_PPLL2)))
 				return ATOM_PPLL2;
···
 	case ATOM_PPLL0:
 		/* disable the ppll */
 		if ((rdev->family == CHIP_ARUBA) ||
+		    (rdev->family == CHIP_KAVERI) ||
 		    (rdev->family == CHIP_BONAIRE) ||
 		    (rdev->family == CHIP_HAWAII))
 			atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,

drivers/gpu/drm/radeon/atombios_dp.c

···
 	struct radeon_connector_atom_dig *dig_connector;
 	int dp_clock;
 
+	if ((mode->clock > 340000) &&
+	    (!radeon_connector_is_dp12_capable(connector)))
+		return MODE_CLOCK_HIGH;
+
 	if (!radeon_connector->con_priv)
 		return MODE_CLOCK_HIGH;
 	dig_connector = radeon_connector->con_priv;

drivers/gpu/drm/radeon/cikd.h

···
 #define ATC_VM_APERTURE1_HIGH_ADDR				0x330Cu
 #define ATC_VM_APERTURE1_LOW_ADDR				0x3304u
 
+#define IH_VMID_0_LUT						0x3D40u
+
 #endif

drivers/gpu/drm/radeon/dce3_1_afmt.c

···
 	}
 
 	sad_count = drm_edid_to_sad(radeon_connector->edid, &sads);
-	if (sad_count < 0) {
+	if (sad_count <= 0) {
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 		return;
 	}

drivers/gpu/drm/radeon/kv_dpm.c

···
 	pi->enable_auto_thermal_throttling = true;
 	pi->disable_nb_ps3_in_battery = false;
 	if (radeon_bapm == -1) {
-		/* There are stability issues reported on with
-		 * bapm enabled on an asrock system.
-		 */
-		if (rdev->pdev->subsystem_vendor == 0x1849)
-			pi->bapm_enable = false;
-		else
+		/* only enable bapm on KB, ML by default */
+		if (rdev->family == CHIP_KABINI || rdev->family == CHIP_MULLINS)
 			pi->bapm_enable = true;
+		else
+			pi->bapm_enable = false;
 	} else if (radeon_bapm == 0) {
 		pi->bapm_enable = false;
 	} else {

drivers/gpu/drm/radeon/radeon_kfd.c

···
 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 			uint32_t queue_id, uint32_t __user *wptr);
 
-static bool kgd_hqd_is_occupies(struct kgd_dev *kgd, uint64_t queue_address,
+static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 				uint32_t pipe_id, uint32_t queue_id);
 
 static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
···
 	.init_memory = kgd_init_memory,
 	.init_pipeline = kgd_init_pipeline,
 	.hqd_load = kgd_hqd_load,
-	.hqd_is_occupies = kgd_hqd_is_occupies,
+	.hqd_is_occupied = kgd_hqd_is_occupied,
 	.hqd_destroy = kgd_hqd_destroy,
 	.get_fw_version = get_fw_version
 };
···
 
 bool radeon_kfd_init(void)
 {
+#if defined(CONFIG_HSA_AMD_MODULE)
 	bool (*kgd2kfd_init_p)(unsigned, const struct kfd2kgd_calls*,
 				const struct kgd2kfd_calls**);
 
···
 	}
 
 	return true;
+#elif defined(CONFIG_HSA_AMD)
+	if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kfd2kgd, &kgd2kfd)) {
+		kgd2kfd = NULL;
+
+		return false;
+	}
+
+	return true;
+#else
+	return false;
+#endif
 }
 
 void radeon_kfd_fini(void)
···
 		cpu_relax();
 	write_register(kgd, ATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
 
+	/* Mapping vmid to pasid also for IH block */
+	write_register(kgd, IH_VMID_0_LUT + vmid * sizeof(uint32_t),
+			pasid_mapping);
+
 	return 0;
 }
 
···
 	return 0;
 }
 
-static bool kgd_hqd_is_occupies(struct kgd_dev *kgd, uint64_t queue_address,
+static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 				uint32_t pipe_id, uint32_t queue_id)
 {
 	uint32_t act;
···
 		if (timeout == 0) {
 			pr_err("kfd: cp queue preemption time out (%dms)\n",
 				temp);
+			release_queue(kgd);
 			return -ETIME;
 		}
 		msleep(20);

drivers/gpu/drm/radeon/radeon_state.c

···
 	u32 format;
 	u32 *buffer;
 	const u8 __user *data;
-	int size, dwords, tex_width, blit_width, spitch;
+	unsigned int size, dwords, tex_width, blit_width, spitch;
 	u32 height;
 	int i;
 	u32 texpitch, microtile;

drivers/hid/Kconfig

···
 
 config HID_BATTERY_STRENGTH
 	bool "Battery level reporting for HID devices"
-	depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY
+	depends on HID
+	select POWER_SUPPLY
 	default n
 	---help---
 	This option adds support of reporting battery strength (for HID devices

drivers/hid/hid-core.c

···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },

drivers/hid/hid-ids.h

···
 #define USB_DEVICE_ID_KYE_GPEN_560	0x5003
 #define USB_DEVICE_ID_KYE_EASYPEN_I405X	0x5010
 #define USB_DEVICE_ID_KYE_MOUSEPEN_I608X	0x5011
+#define USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2	0x501a
 #define USB_DEVICE_ID_KYE_EASYPEN_M610X	0x5013
 
 #define USB_VENDOR_ID_LABTEC		0x1020

drivers/hid/hid-input.c

···
 			       USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
 	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+			       USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
+	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 		USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
 	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
 	{}

drivers/hid/hid-kye.c

···
 		}
 		break;
 	case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
+	case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2:
 		if (*rsize == MOUSEPEN_I608X_RDESC_ORIG_SIZE) {
 			rdesc = mousepen_i608x_rdesc_fixed;
 			*rsize = sizeof(mousepen_i608x_rdesc_fixed);
···
 	switch (id->product) {
 	case USB_DEVICE_ID_KYE_EASYPEN_I405X:
 	case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
+	case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2:
 	case USB_DEVICE_ID_KYE_EASYPEN_M610X:
 		ret = kye_tablet_enable(hdev);
 		if (ret) {
···
 				USB_DEVICE_ID_KYE_EASYPEN_I405X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 				USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
+				USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 				USB_DEVICE_ID_KYE_EASYPEN_M610X) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,

drivers/hid/hid-logitech-dj.c

···
 
 	switch (data[0]) {
 	case REPORT_ID_DJ_SHORT:
+		if (size != DJREPORT_SHORT_LENGTH) {
+			dev_err(&hdev->dev, "DJ report of bad size (%d)", size);
+			return false;
+		}
 		return logi_dj_dj_event(hdev, report, data, size);
 	case REPORT_ID_HIDPP_SHORT:
-		/* intentional fallthrough */
+		if (size != HIDPP_REPORT_SHORT_LENGTH) {
+			dev_err(&hdev->dev,
+				"Short HID++ report of bad size (%d)", size);
+			return false;
+		}
+		return logi_dj_hidpp_event(hdev, report, data, size);
 	case REPORT_ID_HIDPP_LONG:
+		if (size != HIDPP_REPORT_LONG_LENGTH) {
+			dev_err(&hdev->dev,
+				"Long HID++ report of bad size (%d)", size);
+			return false;
+		}
 		return logi_dj_hidpp_event(hdev, report, data, size);
 	}
 

drivers/hid/hid-logitech-hidpp.c

···
 		(report->rap.sub_id == 0x41);
 }
 
+/**
+ * hidpp_prefix_name() prefixes the current given name with "Logitech ".
+ */
+static void hidpp_prefix_name(char **name, int name_length)
+{
+#define PREFIX_LENGTH 9 /* "Logitech " */
+
+	int new_length;
+	char *new_name;
+
+	if (name_length > PREFIX_LENGTH &&
+	    strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
+		/* The prefix has is already in the name */
+		return;
+
+	new_length = PREFIX_LENGTH + name_length;
+	new_name = kzalloc(new_length, GFP_KERNEL);
+	if (!new_name)
+		return;
+
+	snprintf(new_name, new_length, "Logitech %s", *name);
+
+	kfree(*name);
+
+	*name = new_name;
+}
+
 /* -------------------------------------------------------------------------- */
 /* HIDP++ 1.0 commands                                                        */
 /* -------------------------------------------------------------------------- */
···
 		return NULL;
 
 	memcpy(name, &response.rap.params[2], len);
+
+	/* include the terminating '\0' */
+	hidpp_prefix_name(&name, len + 1);
+
 	return name;
 }
 
···
 		}
 		index += ret;
 	}
+
+	/* include the terminating '\0' */
+	hidpp_prefix_name(&name, __name_length + 1);
 
 	return name;
 }
···
 
 	switch (data[0]) {
 	case 0x02:
+		if (size < 2) {
+			hid_err(hdev, "Received HID report of bad size (%d)",
+				size);
+			return 1;
+		}
 		if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
 			input_event(wd->input, EV_KEY, BTN_LEFT,
 					!!(data[1] & 0x01));
 			input_event(wd->input, EV_KEY, BTN_RIGHT,
 					!!(data[1] & 0x02));
 			input_sync(wd->input);
+			return 0;
 		} else {
 			if (size < 21)
 				return 1;
 			return wtp_mouse_raw_xy_event(hidpp, &data[7]);
 		}
 	case REPORT_ID_HIDPP_LONG:
+		/* size is already checked in hidpp_raw_event. */
 		if ((report->fap.feature_index != wd->mt_feature_index) ||
 		    (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
 			return 1;

drivers/hid/hid-roccat-pyra.c

···
 static void profile_activated(struct pyra_device *pyra,
 		unsigned int new_profile)
 {
+	if (new_profile >= ARRAY_SIZE(pyra->profile_settings))
+		return;
 	pyra->actual_profile = new_profile;
 	pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi;
 }
···
 	if (off != 0 || count != PYRA_SIZE_SETTINGS)
 		return -EINVAL;
 
-	mutex_lock(&pyra->pyra_lock);
-
 	settings = (struct pyra_settings const *)buf;
+	if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings))
+		return -EINVAL;
+
+	mutex_lock(&pyra->pyra_lock);
 
 	retval = pyra_set_settings(usb_dev, settings);
 	if (retval) {

drivers/hid/i2c-hid/i2c-hid.c

···
 
 static void i2c_hid_stop(struct hid_device *hid)
 {
-	struct i2c_client *client = hid->driver_data;
-	struct i2c_hid *ihid = i2c_get_clientdata(client);
-
 	hid->claimed = 0;
-
-	i2c_hid_free_buffers(ihid);
 }
 
 static int i2c_hid_open(struct hid_device *hid)

drivers/hid/usbhid/hid-quirks.c

···
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD, HID_QUIRK_NO_INIT_REPORTS },

drivers/iommu/intel-iommu.c

···
 	if (action != BUS_NOTIFY_REMOVED_DEVICE)
 		return 0;
 
-	/*
-	 * If the device is still attached to a device driver we can't
-	 * tear down the domain yet as DMA mappings may still be in use.
-	 * Wait for the BUS_NOTIFY_UNBOUND_DRIVER event to do that.
-	 */
-	if (action == BUS_NOTIFY_DEL_DEVICE && dev->driver != NULL)
-		return 0;
-
 	domain = find_domain(dev);
 	if (!domain)
 		return 0;
···
 				domain_remove_one_dev_info(old_domain, dev);
 			else
 				domain_remove_dev_info(old_domain);
+
+			if (!domain_type_is_vm_or_si(old_domain) &&
+			     list_empty(&old_domain->devices))
+				domain_exit(old_domain);
 		}
 	}
 

drivers/iommu/ipmmu-vmsa.c

···
 
 static u64 ipmmu_page_prot(unsigned int prot, u64 type)
 {
-	u64 pgprot = ARM_VMSA_PTE_XN | ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF
+	u64 pgprot = ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF
 		   | ARM_VMSA_PTE_SH_IS | ARM_VMSA_PTE_AP_UNPRIV
 		   | ARM_VMSA_PTE_NS | type;
 
···
 	if (prot & IOMMU_CACHE)
 		pgprot |= IMMAIR_ATTR_IDX_WBRWA << ARM_VMSA_PTE_ATTRINDX_SHIFT;
 
-	if (prot & IOMMU_EXEC)
-		pgprot &= ~ARM_VMSA_PTE_XN;
+	if (prot & IOMMU_NOEXEC)
+		pgprot |= ARM_VMSA_PTE_XN;
 	else if (!(prot & (IOMMU_READ | IOMMU_WRITE)))
 		/* If no access create a faulting entry to avoid TLB fills. */
 		pgprot &= ~ARM_VMSA_PTE_PAGE;

drivers/iommu/rockchip-iommu.c

···
 	.remove = rk_iommu_remove,
 	.driver = {
 		   .name = "rk_iommu",
-		   .owner = THIS_MODULE,
 		   .of_match_table = of_match_ptr(rk_iommu_dt_ids),
 	},
 };

drivers/leds/leds-netxbig.c

···
 	led_dat->sata = 0;
 	led_dat->cdev.brightness = LED_OFF;
 	led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
-	/*
-	 * If available, expose the SATA activity blink capability through
-	 * a "sata" sysfs attribute.
-	 */
-	if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
-		led_dat->cdev.groups = netxbig_led_groups;
 	led_dat->mode_addr = template->mode_addr;
 	led_dat->mode_val = template->mode_val;
 	led_dat->bright_addr = template->bright_addr;
 	led_dat->bright_max = (1 << pdata->gpio_ext->num_data) - 1;
 	led_dat->timer = pdata->timer;
 	led_dat->num_timer = pdata->num_timer;
+	/*
+	 * If available, expose the SATA activity blink capability through
+	 * a "sata" sysfs attribute.
+	 */
+	if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
+		led_dat->cdev.groups = netxbig_led_groups;
 
 	return led_classdev_register(&pdev->dev, &led_dat->cdev);
 }

drivers/mmc/host/sdhci-acpi.c

···
 	{ "INT33BB"  , "3" , &sdhci_acpi_slot_int_sd },
 	{ "INT33C6"  , NULL, &sdhci_acpi_slot_int_sdio },
 	{ "INT3436"  , NULL, &sdhci_acpi_slot_int_sdio },
+	{ "INT344D"  , NULL, &sdhci_acpi_slot_int_sdio },
 	{ "PNP0D40"  },
 	{ },
 };
···
 	{ "INT33BB"  },
 	{ "INT33C6"  },
 	{ "INT3436"  },
+	{ "INT344D"  },
 	{ "PNP0D40"  },
 	{ },
 };

drivers/mmc/host/sdhci-pci.c

···
 		.subdevice	= PCI_ANY_ID,
 		.driver_data	= (kernel_ulong_t)&sdhci_intel_mrfl_mmc,
 	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_SPT_EMMC,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_emmc,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_SPT_SDIO,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sdio,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_SPT_SD,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_sd,
+	},
+
 	{
 		.vendor		= PCI_VENDOR_ID_O2,
 		.device		= PCI_DEVICE_ID_O2_8120,

drivers/mmc/host/sdhci-pci.h

···
 #define PCI_DEVICE_ID_INTEL_CLV_EMMC0	0x08e5
 #define PCI_DEVICE_ID_INTEL_CLV_EMMC1	0x08e6
 #define PCI_DEVICE_ID_INTEL_QRK_SD	0x08A7
+#define PCI_DEVICE_ID_INTEL_SPT_EMMC	0x9d2b
+#define PCI_DEVICE_ID_INTEL_SPT_SDIO	0x9d2c
+#define PCI_DEVICE_ID_INTEL_SPT_SD	0x9d2d
 
 /*
  * PCI registers

drivers/mmc/host/sdhci-pxav3.c

···
 	if (IS_ERR(host))
 		return PTR_ERR(host);
 
-	if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) {
-		ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info());
-		if (ret < 0)
-			goto err_mbus_win;
-	}
-
-
 	pltfm_host = sdhci_priv(host);
 	pltfm_host->priv = pxa;
 
···
 	pxa->clk_core = devm_clk_get(dev, "core");
 	if (!IS_ERR(pxa->clk_core))
 		clk_prepare_enable(pxa->clk_core);
+
+	if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) {
+		ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info());
+		if (ret < 0)
+			goto err_mbus_win;
+	}
 
 	/* enable 1/8V DDR capable */
 	host->mmc->caps |= MMC_CAP_1_8V_DDR;
···
 	pm_runtime_disable(&pdev->dev);
 err_of_parse:
 err_cd_req:
+err_mbus_win:
 	clk_disable_unprepare(pxa->clk_io);
 	if (!IS_ERR(pxa->clk_core))
 		clk_disable_unprepare(pxa->clk_core);
 err_clk_get:
-err_mbus_win:
 	sdhci_pltfm_free(pdev);
 	return ret;
 }

drivers/mmc/host/sdhci.c

···
 
 		del_timer_sync(&host->tuning_timer);
 		host->flags &= ~SDHCI_NEEDS_RETUNING;
-		host->mmc->max_blk_count =
-			(host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;
 	}
 	sdhci_enable_card_detection(host);
 }
···
 
 	sdhci_runtime_pm_get(host);
 
+	present = mmc_gpio_get_cd(host->mmc);
+
 	spin_lock_irqsave(&host->lock, flags);
 
 	WARN_ON(host->mrq != NULL);
···
 	 *     zero: cd-gpio is used, and card is removed
 	 *     one: cd-gpio is used, and card is present
 	 */
-	present = mmc_gpio_get_cd(host->mmc);
 	if (present < 0) {
 		/* If polling, assume that the card is always present. */
 		if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
···
 	return !(present_state & SDHCI_DATA_LVL_MASK);
 }
 
+static int sdhci_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct sdhci_host *host = mmc_priv(mmc);
+	unsigned long flags;
+
+	spin_lock_irqsave(&host->lock, flags);
+	host->flags |= SDHCI_HS400_TUNING;
+	spin_unlock_irqrestore(&host->lock, flags);
+
+	return 0;
+}
+
 static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 {
 	struct sdhci_host *host = mmc_priv(mmc);
···
 	int tuning_loop_counter = MAX_TUNING_LOOP;
 	int err = 0;
 	unsigned long flags;
+	unsigned int tuning_count = 0;
+	bool hs400_tuning;
 
 	sdhci_runtime_pm_get(host);
 	spin_lock_irqsave(&host->lock, flags);
+
+	hs400_tuning = host->flags & SDHCI_HS400_TUNING;
+	host->flags &= ~SDHCI_HS400_TUNING;
+
+	if (host->tuning_mode == SDHCI_TUNING_MODE_1)
+		tuning_count = host->tuning_count;
 
 	/*
 	 * The Host Controller needs tuning only in case of SDR104 mode
···
 	 * tuning function has to be executed.
 	 */
 	switch (host->timing) {
+	/* HS400 tuning is done in HS200 mode */
 	case MMC_TIMING_MMC_HS400:
+		err = -EINVAL;
+		goto out_unlock;
+
 	case MMC_TIMING_MMC_HS200:
+		/*
+		 * Periodic re-tuning for HS400 is not expected to be needed, so
+		 * disable it here.
+		 */
+		if (hs400_tuning)
+			tuning_count = 0;
+		break;
+
 	case MMC_TIMING_UHS_SDR104:
 		break;
 
···
 		/* FALLTHROUGH */
 
 	default:
-		spin_unlock_irqrestore(&host->lock, flags);
-		sdhci_runtime_pm_put(host);
-		return 0;
+		goto out_unlock;
 	}
 
 	if (host->ops->platform_execute_tuning) {
···
 	}
 
 out:
-	/*
-	 * If this is the very first time we are here, we start the retuning
-	 * timer. Since only during the first time, SDHCI_NEEDS_RETUNING
-	 * flag won't be set, we check this condition before actually starting
-	 * the timer.
-	 */
-	if (!(host->flags & SDHCI_NEEDS_RETUNING) && host->tuning_count &&
-	    (host->tuning_mode == SDHCI_TUNING_MODE_1)) {
+	host->flags &= ~SDHCI_NEEDS_RETUNING;
+
+	if (tuning_count) {
 		host->flags |= SDHCI_USING_RETUNING_TIMER;
-		mod_timer(&host->tuning_timer, jiffies +
-			host->tuning_count * HZ);
-		/* Tuning mode 1 limits the maximum data length to 4MB */
-		mmc->max_blk_count = (4 * 1024 * 1024) / mmc->max_blk_size;
-	} else if (host->flags & SDHCI_USING_RETUNING_TIMER) {
-		host->flags &= ~SDHCI_NEEDS_RETUNING;
-		/* Reload the new initial value for timer */
-		mod_timer(&host->tuning_timer, jiffies +
-			  host->tuning_count * HZ);
+		mod_timer(&host->tuning_timer, jiffies + tuning_count * HZ);
 	}
 
 	/*
···
 
 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+out_unlock:
 	spin_unlock_irqrestore(&host->lock, flags);
 	sdhci_runtime_pm_put(host);
 
···
 {
 	struct sdhci_host *host = mmc_priv(mmc);
 	unsigned long flags;
+	int present;
 
 	/* First check if client has provided their own card event */
 	if (host->ops->card_event)
 		host->ops->card_event(host);
 
+	present = sdhci_do_get_cd(host);
+
 	spin_lock_irqsave(&host->lock, flags);
 
 	/* Check host->mrq first in case we are runtime suspended */
-	if (host->mrq && !sdhci_do_get_cd(host)) {
+	if (host->mrq && !present) {
 		pr_err("%s: Card removed during transfer!\n",
 			mmc_hostname(host->mmc));
 		pr_err("%s: Resetting controller.\n",
···
 	.hw_reset	= sdhci_hw_reset,
 	.enable_sdio_irq = sdhci_enable_sdio_irq,
 	.start_signal_voltage_switch	= sdhci_start_signal_voltage_switch,
+	.prepare_hs400_tuning		= sdhci_prepare_hs400_tuning,
 	.execute_tuning			= sdhci_execute_tuning,
 	.card_event			= sdhci_card_event,
 	.card_busy	= sdhci_card_busy,
···
 		mmc->max_segs = SDHCI_MAX_SEGS;
 
 	/*
-	 * Maximum number of sectors in one transfer. Limited by DMA boundary
-	 * size (512KiB).
+	 * Maximum number of sectors in one transfer. Limited by SDMA boundary
+	 * size (512KiB). Note some tuning modes impose a 4MiB limit, but this
+	 * is less anyway.
 	 */
 	mmc->max_req_size = 524288;
 

drivers/net/ethernet/allwinner/sun4i-emac.c

···
 	}
 
 	db->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(db->clk))
+	if (IS_ERR(db->clk)) {
+		ret = PTR_ERR(db->clk);
 		goto out;
+	}
 
 	clk_prepare_enable(db->clk);
 

drivers/net/ethernet/altera/altera_tse_main.c

···
 init_error:
 	free_skbufs(dev);
 alloc_skbuf_error:
-	if (priv->phydev) {
-		phy_disconnect(priv->phydev);
-		priv->phydev = NULL;
-	}
 phy_error:
 	return ret;
 }
···
 	int ret;
 	unsigned long int flags;
 
-	/* Stop and disconnect the PHY */
-	if (priv->phydev) {
+	/* Stop the PHY */
+	if (priv->phydev)
 		phy_stop(priv->phydev);
-		phy_disconnect(priv->phydev);
-		priv->phydev = NULL;
-	}
 
 	netif_stop_queue(dev);
 	napi_disable(&priv->napi);
···
 static int altera_tse_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct altera_tse_private *priv = netdev_priv(ndev);
+
+	if (priv->phydev)
+		phy_disconnect(priv->phydev);
 
 	platform_set_drvdata(pdev, NULL);
 	altera_tse_mdio_destroy(ndev);

drivers/net/ethernet/cisco/enic/enic_main.c

···
 		if (vnic_rq_desc_used(&enic->rq[i]) == 0) {
 			netdev_err(netdev, "Unable to alloc receive buffers\n");
 			err = -ENOMEM;
-			goto err_out_notify_unset;
+			goto err_out_free_rq;
 		}
 	}
 
···
 
 	return 0;
 
-err_out_notify_unset:
+err_out_free_rq:
+	for (i = 0; i < enic->rq_count; i++)
+		vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
 	enic_dev_notify_unset(enic);
 err_out_free_intr:
 	enic_free_intr(enic);

drivers/net/ethernet/intel/e100.c

···
 		mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr);
 	} else if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) &&
 	   (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) &&
-		!(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) {
+		(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) {
 		/* enable/disable MDI/MDI-X auto-switching. */
 		mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG,
 				nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH);

drivers/net/ethernet/intel/i40e/i40e_debugfs.c

···
 		if (desc_n >= ring->count || desc_n < 0) {
 			dev_info(&pf->pdev->dev,
 				 "descriptor %d not found\n", desc_n);
-			return;
+			goto out;
 		}
 		if (!is_rx_ring) {
 			txd = I40E_TX_DESC(ring, desc_n);
···
 	} else {
 		dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
 	}
+
+out:
 	kfree(ring);
 }
 

drivers/net/ethernet/intel/igb/e1000_82575.c

···
 	u32 swmask = mask;
 	u32 fwmask = mask << 16;
 	s32 ret_val = 0;
-	s32 i = 0, timeout = 200; /* FIXME: find real value to use here */
+	s32 i = 0, timeout = 200;
 
 	while (i < timeout) {
 		if (igb_get_hw_semaphore(hw)) {

drivers/net/ethernet/mellanox/mlx4/main.c

···
 		err = mlx4_dev_cap(dev, &dev_cap);
 		if (err) {
 			mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
-			goto err_stop_fw;
+			return err;
 		}
 
 		choose_steering_mode(dev, &dev_cap);
···
 					     &init_hca);
 		if ((long long) icm_size < 0) {
 			err = icm_size;
-			goto err_stop_fw;
+			return err;
 		}
 
 		dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
···
 
 		err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
 		if (err)
-			goto err_stop_fw;
+			return err;
 
 		err = mlx4_INIT_HCA(dev, &init_hca);
 		if (err) {
···
 			err = mlx4_query_func(dev, &dev_cap);
 			if (err < 0) {
 				mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n");
-				goto err_stop_fw;
+				goto err_close;
 			} else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) {
 				dev->caps.num_eqs = dev_cap.max_eqs;
 				dev->caps.reserved_eqs = dev_cap.reserved_eqs;
···
 	if (!mlx4_is_slave(dev))
 		mlx4_free_icms(dev);
 
-err_stop_fw:
-	if (!mlx4_is_slave(dev)) {
-		mlx4_UNMAP_FA(dev);
-		mlx4_free_icm(dev, priv->fw.fw_icm, 0);
-	}
 	return err;
 }
 

drivers/net/ethernet/mellanox/mlx4/mr.c

···
 void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr)
 {
 	mlx4_mtt_cleanup(dev, &mr->mtt);
+	mr->mtt.order = -1;
 }
 EXPORT_SYMBOL_GPL(mlx4_mr_rereg_mem_cleanup);
 
···
 {
 	int err;
 
-	mpt_entry->start       = cpu_to_be64(iova);
-	mpt_entry->length      = cpu_to_be64(size);
-	mpt_entry->entity_size = cpu_to_be32(page_shift);
-
 	err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt);
 	if (err)
 		return err;
+
+	mpt_entry->start       = cpu_to_be64(mr->iova);
+	mpt_entry->length      = cpu_to_be64(mr->size);
+	mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);
 
 	mpt_entry->pd_flags &= cpu_to_be32(MLX4_MPT_PD_MASK |
 					   MLX4_MPT_PD_FLAG_EN_INV);

drivers/net/ethernet/myricom/myri10ge/myri10ge.c

···
 	(void)pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
 	mgp->cmd = dma_alloc_coherent(&pdev->dev, sizeof(*mgp->cmd),
 				      &mgp->cmd_bus, GFP_KERNEL);
-	if (mgp->cmd == NULL)
+	if (!mgp->cmd) {
+		status = -ENOMEM;
 		goto abort_with_enabled;
+	}
 
 	mgp->board_span = pci_resource_len(pdev, 0);
 	mgp->iomem_base = pci_resource_start(pdev, 0);

drivers/net/ethernet/qlogic/qla3xxx.c

···
 {
 	int i = 0;
 
-	while (i < 10) {
-		if (i)
-			ssleep(1);
-
+	do {
 		if (ql_sem_lock(qdev,
 				QL_DRVR_SEM_MASK,
 				(QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
···
 				      "driver lock acquired\n");
 			return 1;
 		}
-	}
+		ssleep(1);
+	} while (++i < 10);
 
 	netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n");
 	return 0;

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

···
 	} else {
 		dev_err(&pdev->dev,
 			"%s: failed. Please Reboot\n", __func__);
+		err = -ENODEV;
 		goto err_out_free_hw;
 	}
 

drivers/net/ethernet/ti/cpsw.c

···
 static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
 {
 	struct cpsw_priv *priv = dev_id;
+	int value = irq - priv->irqs_table[0];
+
+	/* NOTICE: Ending IRQ here. The trick with the 'value' variable above
+	 * is to make sure we will always write the correct value to the EOI
+	 * register. Namely 0 for RX_THRESH Interrupt, 1 for RX Interrupt, 2
+	 * for TX Interrupt and 3 for MISC Interrupt.
+	 */
+	cpdma_ctlr_eoi(priv->dma, value);
 
 	cpsw_intr_disable(priv);
 	if (priv->irq_enabled == true) {
···
 	int			num_tx, num_rx;
 
 	num_tx = cpdma_chan_process(priv->txch, 128);
-	if (num_tx)
-		cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
 
 	num_rx = cpdma_chan_process(priv->rxch, budget);
 	if (num_rx < budget) {
···
 
 		napi_complete(napi);
 		cpsw_intr_enable(priv);
-		cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
 		prim_cpsw = cpsw_get_slave_priv(priv, 0);
 		if (prim_cpsw->irq_enabled == false) {
 			prim_cpsw->irq_enabled = true;
···
 	napi_enable(&priv->napi);
 	cpdma_ctlr_start(priv->dma);
 	cpsw_intr_enable(priv);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
 
 	prim_cpsw = cpsw_get_slave_priv(priv, 0);
 	if (prim_cpsw->irq_enabled == false) {
···
 	cpdma_chan_start(priv->txch);
 	cpdma_ctlr_int_ctrl(priv->dma, true);
 	cpsw_intr_enable(priv);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
-
 }
 
 static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
···
 	cpsw_interrupt(ndev->irq, priv);
 	cpdma_ctlr_int_ctrl(priv->dma, true);
 	cpsw_intr_enable(priv);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
-	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
-
 }
 #endif
 

drivers/net/ethernet/xilinx/ll_temac_main.c

···
 	lp->regs = of_iomap(op->dev.of_node, 0);
 	if (!lp->regs) {
 		dev_err(&op->dev, "could not map temac regs.\n");
+		rc = -ENOMEM;
 		goto nodev;
 	}
 
···
 	np = of_parse_phandle(op->dev.of_node, "llink-connected", 0);
 	if (!np) {
 		dev_err(&op->dev, "could not find DMA node\n");
+		rc = -ENODEV;
 		goto err_iounmap;
 	}
 

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

···
 	lp->regs = of_iomap(op->dev.of_node, 0);
 	if (!lp->regs) {
 		dev_err(&op->dev, "could not map Axi Ethernet regs.\n");
+		ret = -ENOMEM;
 		goto nodev;
 	}
 	/* Setup checksum offload, but default to off if not specified */
···
 	np = of_parse_phandle(op->dev.of_node, "axistream-connected", 0);
 	if (!np) {
 		dev_err(&op->dev, "could not find DMA node\n");
+		ret = -ENODEV;
 		goto err_iounmap;
 	}
 	lp->dma_regs = of_iomap(np, 0);

drivers/net/ethernet/xilinx/xilinx_emaclite.c

···
 	res = platform_get_resource(ofdev, IORESOURCE_IRQ, 0);
 	if (!res) {
 		dev_err(dev, "no IRQ found\n");
+		rc = -ENXIO;
 		goto error;
 	}
 

drivers/net/usb/qmi_wwan.c

···
 /* default ethernet address used by the modem */
 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
 
+static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};
+
 /* Make up an ethernet header if the packet doesn't have one.
  *
  * A firmware bug common among several devices cause them to send raw
···
 		usb_driver_release_interface(driver, info->data);
 	}
 
-	/* Never use the same address on both ends of the link, even
-	 * if the buggy firmware told us to.
+	/* Never use the same address on both ends of the link, even if the
+	 * buggy firmware told us to. Or, if device is assigned the well-known
+	 * buggy firmware MAC address, replace it with a random address,
 	 */
-	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr))
+	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
+	    ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
 		eth_hw_addr_random(dev->net);
 
 	/* make MAC addr easily distinguishable from an IP header */

drivers/net/usb/r8152.c

···
 	netif_wake_queue(netdev);
 }
 
+static netdev_features_t
+rtl8152_features_check(struct sk_buff *skb, struct net_device *dev,
+		       netdev_features_t features)
+{
+	u32 mss = skb_shinfo(skb)->gso_size;
+	int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX;
+	int offset = skb_transport_offset(skb);
+
+	if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset)
+		features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK);
+	else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz)
+		features &= ~NETIF_F_GSO_MASK;
+
+	return features;
+}
+
 static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
 				      struct net_device *netdev)
 {
···
 	.ndo_set_mac_address	= rtl8152_set_mac_address,
 	.ndo_change_mtu		= rtl8152_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_features_check	= rtl8152_features_check,
 };
 
 static void r8152b_get_version(struct r8152 *tp)

drivers/net/xen-netback/xenbus.c

···
 		}
 
 		queue->remaining_credit = credit_bytes;
+		queue->credit_usec = credit_usec;
 
 		err = connect_rings(be, queue);
 		if (err) {

drivers/pinctrl/pinctrl-rockchip.c

···
  * @reg_pull: optional separate register for additional pull settings
  * @clk: clock of the gpio bank
  * @irq: interrupt of the gpio bank
+ * @saved_enables: Saved content of GPIO_INTEN at suspend time.
  * @pin_base: first pin number
  * @nr_pins: number of pins in this bank
  * @name: name of the bank
···
 	struct regmap			*regmap_pull;
 	struct clk			*clk;
 	int				irq;
+	u32				saved_enables;
 	u32				pin_base;
 	u8				nr_pins;
 	char				*name;
···
 	return 0;
 }
 
+static void rockchip_irq_suspend(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	bank->saved_enables = irq_reg_readl(gc, GPIO_INTEN);
+	irq_reg_writel(gc, gc->wake_active, GPIO_INTEN);
+}
+
+static void rockchip_irq_resume(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct rockchip_pin_bank *bank = gc->private;
+
+	irq_reg_writel(gc, bank->saved_enables, GPIO_INTEN);
+}
+
+static void rockchip_irq_disable(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	irq_gc_lock(gc);
+
+	val = irq_reg_readl(gc, GPIO_INTEN);
+	val &= ~d->mask;
+	irq_reg_writel(gc, val, GPIO_INTEN);
+
+	irq_gc_unlock(gc);
+}
+
+static void rockchip_irq_enable(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	irq_gc_lock(gc);
+
+	val = irq_reg_readl(gc, GPIO_INTEN);
+	val |= d->mask;
+	irq_reg_writel(gc, val, GPIO_INTEN);
+
+	irq_gc_unlock(gc);
+}
+
 static int rockchip_interrupts_register(struct platform_device *pdev,
 						struct rockchip_pinctrl *info)
 {
···
 		gc = irq_get_domain_generic_chip(bank->domain, 0);
 		gc->reg_base = bank->reg_base;
 		gc->private = bank;
-		gc->chip_types[0].regs.mask = GPIO_INTEN;
+		gc->chip_types[0].regs.mask = GPIO_INTMASK;
 		gc->chip_types[0].regs.ack = GPIO_PORTS_EOI;
 		gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
-		gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit;
-		gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit;
+		gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
+		gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
+		gc->chip_types[0].chip.irq_enable = rockchip_irq_enable;
+		gc->chip_types[0].chip.irq_disable = rockchip_irq_disable;
 		gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake;
+		gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
+		gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
 		gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
 		gc->wake_enabled = IRQ_MSK(bank->nr_pins);
 

drivers/pinctrl/pinctrl-st.c

···
 				   struct seq_file *s, unsigned pin_id)
 {
 	unsigned long config;
-	st_pinconf_get(pctldev, pin_id, &config);
 
+	mutex_unlock(&pctldev->mutex);
+	st_pinconf_get(pctldev, pin_id, &config);
+	mutex_lock(&pctldev->mutex);
 	seq_printf(s, "[OE:%ld,PU:%ld,OD:%ld]\n"
 		"\t\t[retime:%ld,invclk:%ld,clknotdat:%ld,"
 		"de:%ld,rt-clk:%ld,rt-delay:%ld]",
···
 
 static struct irq_chip st_gpio_irqchip = {
 	.name		= "GPIO",
+	.irq_disable	= st_gpio_irq_mask,
 	.irq_mask	= st_gpio_irq_mask,
 	.irq_unmask	= st_gpio_irq_unmask,
 	.irq_set_type	= st_gpio_irq_set_type,

drivers/scsi/qla2xxx/qla_os.c

···
 	 * Return target busy if we've received a non-zero retry_delay_timer
 	 * in a FCP_RSP.
 	 */
-	if (time_after(jiffies, fcport->retry_delay_timestamp))
+	if (fcport->retry_delay_timestamp == 0) {
+		/* retry delay not set */
+	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
 		fcport->retry_delay_timestamp = 0;
 	else
 		goto qc24_target_busy;

drivers/target/iscsi/iscsi_target.c

···
 		goto reject;
 	}
 	if (!strncmp("=All", text_ptr, 4)) {
-		cmd->cmd_flags |= IFC_SENDTARGETS_ALL;
+		cmd->cmd_flags |= ICF_SENDTARGETS_ALL;
 	} else if (!strncmp("=iqn.", text_ptr, 5) ||
 		   !strncmp("=eui.", text_ptr, 5)) {
-		cmd->cmd_flags |= IFC_SENDTARGETS_SINGLE;
+		cmd->cmd_flags |= ICF_SENDTARGETS_SINGLE;
 	} else {
 		pr_err("Unable to locate valid SendTargets=%s value\n", text_ptr);
 		goto reject;
···
 		return -ENOMEM;
 	}
 	/*
-	 * Locate pointer to iqn./eui. string for IFC_SENDTARGETS_SINGLE
+	 * Locate pointer to iqn./eui. string for ICF_SENDTARGETS_SINGLE
 	 * explicit case..
 	 */
-	if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) {
+	if (cmd->cmd_flags & ICF_SENDTARGETS_SINGLE) {
 		text_ptr = strchr(text_in, '=');
 		if (!text_ptr) {
 			pr_err("Unable to locate '=' string in text_in:"
···
 
 	spin_lock(&tiqn_lock);
 	list_for_each_entry(tiqn, &g_tiqn_list, tiqn_list) {
-		if ((cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) &&
+		if ((cmd->cmd_flags & ICF_SENDTARGETS_SINGLE) &&
 		     strcmp(tiqn->tiqn, text_ptr)) {
 			continue;
 		}
···
 		if (end_of_buf)
 			break;
 
-		if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE)
+		if (cmd->cmd_flags & ICF_SENDTARGETS_SINGLE)
 			break;
 	}
 	spin_unlock(&tiqn_lock);

drivers/target/iscsi/iscsi_target_core.h

···
 	ICF_CONTIG_MEMORY			= 0x00000020,
 	ICF_ATTACHED_TO_RQUEUE			= 0x00000040,
 	ICF_OOO_CMDSN				= 0x00000080,
-	IFC_SENDTARGETS_ALL			= 0x00000100,
-	IFC_SENDTARGETS_SINGLE			= 0x00000200,
+	ICF_SENDTARGETS_ALL			= 0x00000100,
+	ICF_SENDTARGETS_SINGLE			= 0x00000200,
 };
 
 /* struct iscsi_cmd->i_state */

drivers/target/target_core_device.c

···
 }
 EXPORT_SYMBOL(se_dev_set_queue_depth);
 
-int se_dev_set_fabric_max_sectors(struct se_device *dev, u32 fabric_max_sectors)
-{
-	int block_size = dev->dev_attrib.block_size;
-
-	if (dev->export_count) {
-		pr_err("dev[%p]: Unable to change SE Device"
-			" fabric_max_sectors while export_count is %d\n",
-			dev, dev->export_count);
-		return -EINVAL;
-	}
-	if (!fabric_max_sectors) {
-		pr_err("dev[%p]: Illegal ZERO value for"
-			" fabric_max_sectors\n", dev);
-		return -EINVAL;
-	}
-	if (fabric_max_sectors < DA_STATUS_MAX_SECTORS_MIN) {
-		pr_err("dev[%p]: Passed fabric_max_sectors: %u less than"
-			" DA_STATUS_MAX_SECTORS_MIN: %u\n", dev, fabric_max_sectors,
-				DA_STATUS_MAX_SECTORS_MIN);
-		return -EINVAL;
-	}
-	if (fabric_max_sectors > DA_STATUS_MAX_SECTORS_MAX) {
-		pr_err("dev[%p]: Passed fabric_max_sectors: %u"
-			" greater than DA_STATUS_MAX_SECTORS_MAX:"
-			" %u\n", dev, fabric_max_sectors,
-			DA_STATUS_MAX_SECTORS_MAX);
-		return -EINVAL;
-	}
-	/*
-	 * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks()
-	 */
-	if (!block_size) {
-		block_size = 512;
-		pr_warn("Defaulting to 512 for zero block_size\n");
-	}
-	fabric_max_sectors = se_dev_align_max_sectors(fabric_max_sectors,
-						      block_size);
-
-	dev->dev_attrib.fabric_max_sectors = fabric_max_sectors;
-	pr_debug("dev[%p]: SE Device max_sectors changed to %u\n",
-			dev, fabric_max_sectors);
-	return 0;
-}
-EXPORT_SYMBOL(se_dev_set_fabric_max_sectors);
-
 int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors)
 {
 	if (dev->export_count) {
···
 			dev, dev->export_count);
 		return -EINVAL;
 	}
-	if (optimal_sectors > dev->dev_attrib.fabric_max_sectors) {
+	if (optimal_sectors > dev->dev_attrib.hw_max_sectors) {
 		pr_err("dev[%p]: Passed optimal_sectors %u cannot be"
-			" greater than fabric_max_sectors: %u\n", dev,
-			optimal_sectors, dev->dev_attrib.fabric_max_sectors);
+			" greater than hw_max_sectors: %u\n", dev,
+			optimal_sectors, dev->dev_attrib.hw_max_sectors);
 		return -EINVAL;
 	}
 
···
 	dev->dev_attrib.unmap_granularity_alignment =
 				DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT;
 	dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN;
-	dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS;
-	dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS;
 
 	xcopy_lun = &dev->xcopy_lun;
 	xcopy_lun->lun_se_dev = dev;
···
 	dev->dev_attrib.hw_max_sectors =
 		se_dev_align_max_sectors(dev->dev_attrib.hw_max_sectors,
 					 dev->dev_attrib.hw_block_size);
+	dev->dev_attrib.optimal_sectors = dev->dev_attrib.hw_max_sectors;
 
 	dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX);
 	dev->creation_time = get_jiffies_64();

drivers/target/target_core_file.c

···
 	struct fd_prot fd_prot;
 	sense_reason_t rc;
 	int ret = 0;
-
+	/*
+	 * We are currently limited by the number of iovecs (2048) per
+	 * single vfs_[writev,readv] call.
+	 */
+	if (cmd->data_length > FD_MAX_BYTES) {
+		pr_err("FILEIO: Not able to process I/O of %u bytes due to"
+		       "FD_MAX_BYTES: %u iovec count limitiation\n",
+			cmd->data_length, FD_MAX_BYTES);
+		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+	}
 	/*
 	 * Call vectorized fileio functions to map struct scatterlist
 	 * physical memory addresses to struct iovec virtual memory.
···
 	&fileio_dev_attrib_hw_block_size.attr,
 	&fileio_dev_attrib_block_size.attr,
 	&fileio_dev_attrib_hw_max_sectors.attr,
-	&fileio_dev_attrib_fabric_max_sectors.attr,
 	&fileio_dev_attrib_optimal_sectors.attr,
 	&fileio_dev_attrib_hw_queue_depth.attr,
 	&fileio_dev_attrib_queue_depth.attr,

drivers/target/target_core_iblock.c

···
 	q = bdev_get_queue(bd);
 
 	dev->dev_attrib.hw_block_size = bdev_logical_block_size(bd);
-	dev->dev_attrib.hw_max_sectors = UINT_MAX;
+	dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q);
 	dev->dev_attrib.hw_queue_depth = q->nr_requests;
 
 	/*
···
 	&iblock_dev_attrib_hw_block_size.attr,
 	&iblock_dev_attrib_block_size.attr,
 	&iblock_dev_attrib_hw_max_sectors.attr,
-	&iblock_dev_attrib_fabric_max_sectors.attr,
 	&iblock_dev_attrib_optimal_sectors.attr,
 	&iblock_dev_attrib_hw_queue_depth.attr,
 	&iblock_dev_attrib_queue_depth.attr,

drivers/target/target_core_pr.c

···
 
 			return 0;
 		}
+       } else if (we && registered_nexus) {
+               /*
+                * Reads are allowed for Write Exclusive locks
+                * from all registrants.
+                */
+               if (cmd->data_direction == DMA_FROM_DEVICE) {
+                       pr_debug("Allowing READ CDB: 0x%02x for %s"
+                               " reservation\n", cdb[0],
+                               core_scsi3_pr_dump_type(pr_reg_type));
+
+                       return 0;
+               }
 	}
 	pr_debug("%s Conflict for %sregistered nexus %s CDB: 0x%2x"
 		" for %s reservation\n", transport_dump_cmd_direction(cmd),

drivers/target/target_core_rd.c

···
 	&rd_mcp_dev_attrib_hw_block_size.attr,
 	&rd_mcp_dev_attrib_block_size.attr,
 	&rd_mcp_dev_attrib_hw_max_sectors.attr,
-	&rd_mcp_dev_attrib_fabric_max_sectors.attr,
 	&rd_mcp_dev_attrib_optimal_sectors.attr,
 	&rd_mcp_dev_attrib_hw_queue_depth.attr,
 	&rd_mcp_dev_attrib_queue_depth.attr,

drivers/target/target_core_sbc.c

···
 
 	if (cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
 		unsigned long long end_lba;
-
-		if (sectors > dev->dev_attrib.fabric_max_sectors) {
-			printk_ratelimited(KERN_ERR "SCSI OP %02xh with too"
-				" big sectors %u exceeds fabric_max_sectors:"
-				" %u\n", cdb[0], sectors,
-				dev->dev_attrib.fabric_max_sectors);
-			return TCM_INVALID_CDB_FIELD;
-		}
-		if (sectors > dev->dev_attrib.hw_max_sectors) {
-			printk_ratelimited(KERN_ERR "SCSI OP %02xh with too"
-				" big sectors %u exceeds backend hw_max_sectors:"
-				" %u\n", cdb[0], sectors,
-				dev->dev_attrib.hw_max_sectors);
-			return TCM_INVALID_CDB_FIELD;
-		}
 check_lba:
 		end_lba = dev->transport->get_blocks(dev) + 1;
 		if (cmd->t_task_lba + sectors > end_lba) {

drivers/target/target_core_spc.c

···
 spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
 {
 	struct se_device *dev = cmd->se_dev;
-	u32 max_sectors;
 	int have_tp = 0;
 	int opt, min;
 
···
 	/*
 	 * Set MAXIMUM TRANSFER LENGTH
 	 */
-	max_sectors = min(dev->dev_attrib.fabric_max_sectors,
-			  dev->dev_attrib.hw_max_sectors);
-	put_unaligned_be32(max_sectors, &buf[8]);
+	put_unaligned_be32(dev->dev_attrib.hw_max_sectors, &buf[8]);
 
 	/*
 	 * Set OPTIMAL TRANSFER LENGTH

drivers/target/target_core_user.c

···
 	&tcmu_dev_attrib_hw_block_size.attr,
 	&tcmu_dev_attrib_block_size.attr,
 	&tcmu_dev_attrib_hw_max_sectors.attr,
-	&tcmu_dev_attrib_fabric_max_sectors.attr,
 	&tcmu_dev_attrib_optimal_sectors.attr,
 	&tcmu_dev_attrib_hw_queue_depth.attr,
 	&tcmu_dev_attrib_queue_depth.attr,

drivers/thermal/int340x_thermal/acpi_thermal_rel.c

···
 			continue;
 
 		result = acpi_bus_get_device(trt->source, &adev);
-		if (!result)
-			acpi_create_platform_device(adev);
-		else
+		if (result)
 			pr_warn("Failed to get source ACPI device\n");
 
 		result = acpi_bus_get_device(trt->target, &adev);
-		if (!result)
-			acpi_create_platform_device(adev);
-		else
+		if (result)
 			pr_warn("Failed to get target ACPI device\n");
 	}
 
···
 
 		if (art->source) {
 			result = acpi_bus_get_device(art->source, &adev);
-			if (!result)
-				acpi_create_platform_device(adev);
-			else
+			if (result)
 				pr_warn("Failed to get source ACPI device\n");
 		}
 		if (art->target) {
 			result = acpi_bus_get_device(art->target, &adev);
-			if (!result)
-				acpi_create_platform_device(adev);
-			else
+			if (result)
 				pr_warn("Failed to get source ACPI device\n");
 		}
 	}

drivers/thermal/int340x_thermal/processor_thermal_device.c

···
 	int ret;
 
 	adev = ACPI_COMPANION(dev);
+	if (!adev)
+		return -ENODEV;
 
 	status = acpi_evaluate_object(adev->handle, "PPCC", NULL, &buf);
 	if (ACPI_FAILURE(status))

drivers/vfio/pci/vfio_pci.c

···
 
 static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	u8 type;
 	struct vfio_pci_device *vdev;
 	struct iommu_group *group;
 	int ret;
 
-	pci_read_config_byte(pdev, PCI_HEADER_TYPE, &type);
-	if ((type & PCI_HEADER_TYPE) != PCI_HEADER_TYPE_NORMAL)
+	if (pdev->hdr_type != PCI_HEADER_TYPE_NORMAL)
 		return -EINVAL;
 
 	group = iommu_group_get(&pdev->dev);

drivers/vhost/net.c

···
 		++headcount;
 		seg += in;
 	}
-	heads[headcount - 1].len = cpu_to_vhost32(vq, len - datalen);
+	heads[headcount - 1].len = cpu_to_vhost32(vq, len + datalen);
 	*iovcount = seg;
 	if (unlikely(log))
 		*log_num = nlogs;

drivers/vhost/scsi.c

···
 	return 0;
 }
 
+static int vhost_scsi_to_tcm_attr(int attr)
+{
+	switch (attr) {
+	case VIRTIO_SCSI_S_SIMPLE:
+		return TCM_SIMPLE_TAG;
+	case VIRTIO_SCSI_S_ORDERED:
+		return TCM_ORDERED_TAG;
+	case VIRTIO_SCSI_S_HEAD:
+		return TCM_HEAD_TAG;
+	case VIRTIO_SCSI_S_ACA:
+		return TCM_ACA_TAG;
+	default:
+		break;
+	}
+	return TCM_SIMPLE_TAG;
+}
+
 static void tcm_vhost_submission_work(struct work_struct *work)
 {
 	struct tcm_vhost_cmd *cmd =
···
 	rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
 			cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
 			cmd->tvc_lun, cmd->tvc_exp_data_len,
-			cmd->tvc_task_attr, cmd->tvc_data_direction,
-			TARGET_SCF_ACK_KREF, sg_ptr, cmd->tvc_sgl_count,
-			NULL, 0, sg_prot_ptr, cmd->tvc_prot_sgl_count);
+			vhost_scsi_to_tcm_attr(cmd->tvc_task_attr),
+			cmd->tvc_data_direction, TARGET_SCF_ACK_KREF,
+			sg_ptr, cmd->tvc_sgl_count, NULL, 0, sg_prot_ptr,
+			cmd->tvc_prot_sgl_count);
 	if (rc < 0) {
 		transport_send_check_condition_and_sense(se_cmd,
 				TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);

drivers/virtio/virtio_pci_common.c

···
 
 	vp_free_vectors(vdev);
 	kfree(vp_dev->vqs);
+	vp_dev->vqs = NULL;
 }
 
 static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs,
···
 		}
 	}
 	return 0;
-}
-
-void virtio_pci_release_dev(struct device *_d)
-{
-	/*
-	 * No need for a release method as we allocate/free
-	 * all devices together with the pci devices.
-	 * Provide an empty one to avoid getting a warning from core.
-	 */
 }
 
 #ifdef CONFIG_PM_SLEEP

drivers/virtio/virtio_pci_common.h

···
  * - ignore the affinity request if we're using INTX
  */
 int vp_set_vq_affinity(struct virtqueue *vq, int cpu);
-void virtio_pci_release_dev(struct device *);
 
 int virtio_pci_legacy_probe(struct pci_dev *pci_dev,
 			    const struct pci_device_id *id);

drivers/virtio/virtio_pci_legacy.c

···
 	.set_vq_affinity = vp_set_vq_affinity,
 };
 
+static void virtio_pci_release_dev(struct device *_d)
+{
+	struct virtio_device *vdev = dev_to_virtio(_d);
+	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+
+	/* As struct device is a kobject, it's not safe to
+	 * free the memory (including the reference counter itself)
+	 * until it's release callback. */
+	kfree(vp_dev);
+}
+
 /* the PCI probing function */
 int virtio_pci_legacy_probe(struct pci_dev *pci_dev,
 			    const struct pci_device_id *id)
···
 	pci_iounmap(pci_dev, vp_dev->ioaddr);
 	pci_release_regions(pci_dev);
 	pci_disable_device(pci_dev);
-	kfree(vp_dev);
 }

fs/btrfs/backref.c

···
 {
 	int ret;
 	int type;
-	struct btrfs_tree_block_info *info;
 	struct btrfs_extent_inline_ref *eiref;
 
 	if (*ptr == (unsigned long)-1)
···
 	}
 
 	/* we can treat both ref types equally here */
-	info = (struct btrfs_tree_block_info *)(ei + 1);
 	*out_root = btrfs_extent_inline_ref_offset(eb, eiref);
-	*out_level = btrfs_tree_block_level(eb, info);
+
+	if (key->type == BTRFS_EXTENT_ITEM_KEY) {
+		struct btrfs_tree_block_info *info;
+
+		info = (struct btrfs_tree_block_info *)(ei + 1);
+		*out_level = btrfs_tree_block_level(eb, info);
+	} else {
+		ASSERT(key->type == BTRFS_METADATA_ITEM_KEY);
+		*out_level = (u8)key->offset;
+	}
 
 	if (ret == 1)
 		*ptr = (unsigned long)-1;

fs/btrfs/delayed-inode.c

···
 {
 	struct btrfs_delayed_node *delayed_node;
 
+	/*
+	 * we don't do delayed inode updates during log recovery because it
+	 * leads to enospc problems.  This means we also can't do
+	 * delayed inode refs
+	 */
+	if (BTRFS_I(inode)->root->fs_info->log_root_recovering)
+		return -EAGAIN;
+
 	delayed_node = btrfs_get_or_create_delayed_node(inode);
 	if (IS_ERR(delayed_node))
 		return PTR_ERR(delayed_node);

fs/btrfs/extent-tree.c

···
 	struct extent_buffer *leaf;
 
 	ret = btrfs_search_slot(trans, extent_root, &cache->key, path, 0, 1);
-	if (ret < 0)
+	if (ret) {
+		if (ret > 0)
+			ret = -ENOENT;
 		goto fail;
-	BUG_ON(ret); /* Corruption */
+	}
 
 	leaf = path->nodes[0];
 	bi = btrfs_item_ptr_offset(leaf, path->slots[0]);
···
 	btrfs_mark_buffer_dirty(leaf);
 	btrfs_release_path(path);
 fail:
-	if (ret) {
+	if (ret)
 		btrfs_abort_transaction(trans, root, ret);
-		return ret;
-	}
-	return 0;
+	return ret;
 
 }
 

fs/btrfs/inode.c

···
 
 out_fail:
 	btrfs_end_transaction(trans, root);
-	if (drop_on_err)
+	if (drop_on_err) {
+		inode_dec_link_count(inode);
 		iput(inode);
+	}
 	btrfs_balance_delayed_items(root);
 	btrfs_btree_balance_dirty(root);
 	return err;

fs/btrfs/scrub.c

···
 		ret = scrub_pages_for_parity(sparity, logical, l, physical, dev,
 					     flags, gen, mirror_num,
 					     have_csum ? csum : NULL);
-skip:
 		if (ret)
 			return ret;
+skip:
 		len -= l;
 		logical += l;
 		physical += l;

fs/ceph/addr.c

···
 		}
 	}
 
-	dout("fill_inline_data %p %llx.%llx len %lu locked_page %p\n",
+	dout("fill_inline_data %p %llx.%llx len %zu locked_page %p\n",
 	     inode, ceph_vinop(inode), len, locked_page);
 
 	if (len > 0) {

fs/ext4/extents.c

···
 
 	/* fallback to generic here if not in extents fmt */
 	if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
-		return __generic_block_fiemap(inode, fieinfo, start, len,
-					      ext4_get_block);
+		return generic_block_fiemap(inode, fieinfo, start, len,
+			ext4_get_block);
 
 	if (fiemap_check_flags(fieinfo, EXT4_FIEMAP_FLAGS))
 		return -EBADR;

fs/ext4/file.c

···
  * we determine this extent as a data or a hole according to whether the
  * page cache has data or not.
  */
-static int ext4_find_unwritten_pgoff(struct inode *inode, int whence,
-				     loff_t endoff, loff_t *offset)
+static int ext4_find_unwritten_pgoff(struct inode *inode,
+				     int whence,
+				     struct ext4_map_blocks *map,
+				     loff_t *offset)
 {
 	struct pagevec pvec;
+	unsigned int blkbits;
 	pgoff_t index;
 	pgoff_t end;
+	loff_t endoff;
 	loff_t startoff;
 	loff_t lastoff;
 	int found = 0;
 
+	blkbits = inode->i_sb->s_blocksize_bits;
 	startoff = *offset;
 	lastoff = startoff;
-
+	endoff = (loff_t)(map->m_lblk + map->m_len) << blkbits;
 
 	index = startoff >> PAGE_CACHE_SHIFT;
 	end = endoff >> PAGE_CACHE_SHIFT;
···
 static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
 {
 	struct inode *inode = file->f_mapping->host;
-	struct fiemap_extent_info fie;
-	struct fiemap_extent ext[2];
-	loff_t next;
-	int i, ret = 0;
+	struct ext4_map_blocks map;
+	struct extent_status es;
+	ext4_lblk_t start, last, end;
+	loff_t dataoff, isize;
+	int blkbits;
+	int ret = 0;
 
 	mutex_lock(&inode->i_mutex);
-	if (offset >= inode->i_size) {
+
+	isize = i_size_read(inode);
+	if (offset >= isize) {
 		mutex_unlock(&inode->i_mutex);
 		return -ENXIO;
 	}
-	fie.fi_flags = 0;
-	fie.fi_extents_max = 2;
-	fie.fi_extents_start = (struct fiemap_extent __user *) &ext;
-	while (1) {
-		mm_segment_t old_fs = get_fs();
 
-		fie.fi_extents_mapped = 0;
-		memset(ext, 0, sizeof(*ext) * fie.fi_extents_max);
+	blkbits = inode->i_sb->s_blocksize_bits;
+	start = offset >> blkbits;
+	last = start;
+	end = isize >> blkbits;
+	dataoff = offset;
 
-		set_fs(get_ds());
-		ret = ext4_fiemap(inode, &fie, offset, maxsize - offset);
-		set_fs(old_fs);
-		if (ret)
-			break;
-
-		/* No extents found, EOF */
-		if (!fie.fi_extents_mapped) {
-			ret = -ENXIO;
+	do {
+		map.m_lblk = last;
+		map.m_len = end - last + 1;
+		ret = ext4_map_blocks(NULL, inode, &map, 0);
+		if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) {
+			if (last != start)
+				dataoff = (loff_t)last << blkbits;
 			break;
 		}
-		for (i = 0; i < fie.fi_extents_mapped; i++) {
-			next = (loff_t)(ext[i].fe_length + ext[i].fe_logical);
 
-			if (offset < (loff_t)ext[i].fe_logical)
-				offset = (loff_t)ext[i].fe_logical;
-			/*
-			 * If extent is not unwritten, then it contains valid
-			 * data, mapped or delayed.
-			 */
-			if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN))
-				goto out;
-
-			/*
-			 * If there is a unwritten extent at this offset,
-			 * it will be as a data or a hole according to page
-			 * cache that has data or not.
-			 */
-			if (ext4_find_unwritten_pgoff(inode, SEEK_DATA,
-						      next, &offset))
-				goto out;
-
-			if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) {
-				ret = -ENXIO;
-				goto out;
-			}
-			offset = next;
+		/*
+		 * If there is a delay extent at this offset,
+		 * it will be as a data.
+		 */
+		ext4_es_find_delayed_extent_range(inode, last, last, &es);
+		if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
+			if (last != start)
+				dataoff = (loff_t)last << blkbits;
+			break;
 		}
-	}
-	if (offset > inode->i_size)
-		offset = inode->i_size;
-out:
+
+		/*
+		 * If there is a unwritten extent at this offset,
+		 * it will be as a data or a hole according to page
+		 * cache that has data or not.
+		 */
+		if (map.m_flags & EXT4_MAP_UNWRITTEN) {
+			int unwritten;
+			unwritten = ext4_find_unwritten_pgoff(inode, SEEK_DATA,
+							      &map, &dataoff);
+			if (unwritten)
+				break;
+		}
+
+		last++;
+		dataoff = (loff_t)last << blkbits;
+	} while (last <= end);
+
 	mutex_unlock(&inode->i_mutex);
-	if (ret)
-		return ret;
 
-	return vfs_setpos(file, offset, maxsize);
+	if (dataoff > isize)
+		return -ENXIO;
+
+	return vfs_setpos(file, dataoff, maxsize);
 }
 
 /*
- * ext4_seek_hole() retrieves the offset for SEEK_HOLE
+ * ext4_seek_hole() retrieves the offset for SEEK_HOLE.
  */
 static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
 {
 	struct inode *inode = file->f_mapping->host;
-	struct fiemap_extent_info fie;
-	struct fiemap_extent ext[2];
-	loff_t next;
-	int i, ret = 0;
+	struct ext4_map_blocks map;
+	struct extent_status es;
+	ext4_lblk_t start, last, end;
+	loff_t holeoff, isize;
+	int blkbits;
+	int ret = 0;
 
 	mutex_lock(&inode->i_mutex);
-	if (offset >= inode->i_size) {
+
+	isize = i_size_read(inode);
+	if (offset >= isize) {
 		mutex_unlock(&inode->i_mutex);
 		return -ENXIO;
 	}
 
-	fie.fi_flags = 0;
-	fie.fi_extents_max = 2;
-	fie.fi_extents_start = (struct fiemap_extent __user *)&ext;
-	while (1) {
-		mm_segment_t old_fs = get_fs();
+	blkbits = inode->i_sb->s_blocksize_bits;
+	start = offset >> blkbits;
+	last = start;
+	end = isize >> blkbits;
+	holeoff = offset;
 
-		fie.fi_extents_mapped = 0;
-		memset(ext, 0, sizeof(*ext));
+	do {
+		map.m_lblk = last;
+		map.m_len = end - last + 1;
+		ret = ext4_map_blocks(NULL, inode, &map, 0);
+		if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) {
+			last += ret;
+			holeoff = (loff_t)last << blkbits;
+			continue;
+		}
 
-		set_fs(get_ds());
-		ret = ext4_fiemap(inode, &fie, offset, maxsize - offset);
-		set_fs(old_fs);
-		if (ret)
-			break;
+		/*
+		 * If there is a delay extent at this offset,
+		 * we will skip this extent.
+		 */
+		ext4_es_find_delayed_extent_range(inode, last, last, &es);
+		if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
+			last = es.es_lblk + es.es_len;
+			holeoff = (loff_t)last << blkbits;
+			continue;
+		}
 
-		/* No extents found */
-		if (!fie.fi_extents_mapped)
-			break;
-
-		for (i = 0; i < fie.fi_extents_mapped; i++) {
-			next = (loff_t)(ext[i].fe_logical + ext[i].fe_length);
-			/*
-			 * If extent is not unwritten, then it contains valid
-			 * data, mapped or delayed.
-			 */
-			if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) {
-				if (offset < (loff_t)ext[i].fe_logical)
-					goto out;
-				offset = next;
+		/*
+		 * If there is a unwritten extent at this offset,
+		 * it will be as a data or a hole according to page
+		 * cache that has data or not.
+		 */
+		if (map.m_flags & EXT4_MAP_UNWRITTEN) {
+			int unwritten;
+			unwritten = ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
+							      &map, &holeoff);
+			if (!unwritten) {
+				last += ret;
+				holeoff = (loff_t)last << blkbits;
 				continue;
 			}
-			/*
-			 * If there is a unwritten extent at this offset,
-			 * it will be as a data or a hole according to page
-			 * cache that has data or not.
-			 */
-			if (ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
-						      next, &offset))
-				goto out;
-
-			offset = next;
-			if (ext[i].fe_flags & FIEMAP_EXTENT_LAST)
-				goto out;
 		}
-	}
-	if (offset > inode->i_size)
-		offset = inode->i_size;
-out:
-	mutex_unlock(&inode->i_mutex);
-	if (ret)
-		return ret;
 
-	return vfs_setpos(file, offset, maxsize);
+		/* find a hole */
+		break;
+	} while (last <= end);
+
+	mutex_unlock(&inode->i_mutex);
+
+	if (holeoff > isize)
+		holeoff = isize;
+
+	return vfs_setpos(file, holeoff, maxsize);
 }
 
 /*

fs/ext4/resize.c

···
 		return -EPERM;
 
 	/*
+	 * If we are not using the primary superblock/GDT copy don't resize,
+         * because the user tools have no way of handling this.  Probably a
+         * bad time to do it anyways.
+         */
+	if (EXT4_SB(sb)->s_sbh->b_blocknr !=
+	    le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
+		ext4_warning(sb, "won't resize using backup superblock at %llu",
+			(unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
+		return -EPERM;
+	}
+
+	/*
 	 * We are not allowed to do online-resizing on a filesystem mounted
 	 * with error, because it can destroy the filesystem easily.
 	 */
···
 		printk(KERN_DEBUG
 		       "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n",
 		       gdb_num);
-
-	/*
-	 * If we are not using the primary superblock/GDT copy don't resize,
-         * because the user tools have no way of handling this.  Probably a
-         * bad time to do it anyways.
-         */
-	if (EXT4_SB(sb)->s_sbh->b_blocknr !=
-	    le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
-		ext4_warning(sb, "won't resize using backup superblock at %llu",
-			(unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
-		return -EPERM;
-	}
 
 	gdb_bh = sb_bread(sb, gdblock);
 	if (!gdb_bh)

fs/ext4/super.c

···
 	if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
 				       EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
 	    EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
-		ext4_warning(sb, KERN_INFO "metadata_csum and uninit_bg are "
+		ext4_warning(sb, "metadata_csum and uninit_bg are "
 			     "redundant flags; please run fsck.");
 
 	/* Check for a known checksum algorithm */

fs/fcntl.c

···
 	 * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
 	 * is defined as O_NONBLOCK on some platforms and not on others.
 	 */
-	BUILD_BUG_ON(20 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
+	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
 		O_RDONLY	| O_WRONLY	| O_RDWR	|
 		O_CREAT		| O_EXCL	| O_NOCTTY	|
 		O_TRUNC		| O_APPEND	| /* O_NONBLOCK	| */
 		__O_SYNC	| O_DSYNC	| FASYNC	|
 		O_DIRECT	| O_LARGEFILE	| O_DIRECTORY	|
 		O_NOFOLLOW	| O_NOATIME	| O_CLOEXEC	|
-		__FMODE_EXEC	| O_PATH	| __O_TMPFILE
+		__FMODE_EXEC	| O_PATH	| __O_TMPFILE	|
+		__FMODE_NONOTIFY
 		));
 
 	fasync_cache = kmem_cache_create("fasync_cache",

fs/gfs2/quota.c

···
 
 static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 			     s64 change, struct gfs2_quota_data *qd,
-			     struct fs_disk_quota *fdq)
+			     struct qc_dqblk *fdq)
 {
 	struct inode *inode = &ip->i_inode;
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
···
 	be64_add_cpu(&q.qu_value, change);
 	qd->qd_qb.qb_value = q.qu_value;
 	if (fdq) {
-		if (fdq->d_fieldmask & FS_DQ_BSOFT) {
-			q.qu_warn = cpu_to_be64(fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift);
+		if (fdq->d_fieldmask & QC_SPC_SOFT) {
+			q.qu_warn = cpu_to_be64(fdq->d_spc_softlimit >> sdp->sd_sb.sb_bsize_shift);
 			qd->qd_qb.qb_warn = q.qu_warn;
 		}
-		if (fdq->d_fieldmask & FS_DQ_BHARD) {
-			q.qu_limit = cpu_to_be64(fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift);
+		if (fdq->d_fieldmask & QC_SPC_HARD) {
+			q.qu_limit = cpu_to_be64(fdq->d_spc_hardlimit >> sdp->sd_sb.sb_bsize_shift);
 			qd->qd_qb.qb_limit = q.qu_limit;
 		}
-		if (fdq->d_fieldmask & FS_DQ_BCOUNT) {
-			q.qu_value = cpu_to_be64(fdq->d_bcount >> sdp->sd_fsb2bb_shift);
+		if (fdq->d_fieldmask & QC_SPACE) {
+			q.qu_value = cpu_to_be64(fdq->d_space >> sdp->sd_sb.sb_bsize_shift);
 			qd->qd_qb.qb_value = q.qu_value;
 		}
 	}
···
 }
 
 static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid,
-			  struct fs_disk_quota *fdq)
+			  struct qc_dqblk *fdq)
 {
 	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct gfs2_quota_lvb *qlvb;
···
 	struct gfs2_holder q_gh;
 	int error;
 
-	memset(fdq, 0, sizeof(struct fs_disk_quota));
+	memset(fdq, 0, sizeof(*fdq));
 
 	if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
 		return -ESRCH; /* Crazy XFS error code */
···
 		goto out;
 
 	qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lksb.sb_lvbptr;
-	fdq->d_version = FS_DQUOT_VERSION;
-	fdq->d_flags = (qid.type == USRQUOTA) ? FS_USER_QUOTA : FS_GROUP_QUOTA;
-	fdq->d_id = from_kqid_munged(current_user_ns(), qid);
-	fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_fsb2bb_shift;
-	fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_fsb2bb_shift;
-	fdq->d_bcount = be64_to_cpu(qlvb->qb_value) << sdp->sd_fsb2bb_shift;
+	fdq->d_spc_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_sb.sb_bsize_shift;
+	fdq->d_spc_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_sb.sb_bsize_shift;
+	fdq->d_space = be64_to_cpu(qlvb->qb_value) << sdp->sd_sb.sb_bsize_shift;
 
 	gfs2_glock_dq_uninit(&q_gh);
 out:
···
 }
 
 /* GFS2 only supports a subset of the XFS fields */
-#define GFS2_FIELDMASK (FS_DQ_BSOFT|FS_DQ_BHARD|FS_DQ_BCOUNT)
+#define GFS2_FIELDMASK (QC_SPC_SOFT|QC_SPC_HARD|QC_SPACE)
 
 static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid,
-			  struct fs_disk_quota *fdq)
+			  struct qc_dqblk *fdq)
 {
 	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
···
 		goto out_i;
 
 	/* If nothing has changed, this is a no-op */
-	if ((fdq->d_fieldmask & FS_DQ_BSOFT) &&
-	    ((fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_warn)))
-		fdq->d_fieldmask ^= FS_DQ_BSOFT;
+	if ((fdq->d_fieldmask & QC_SPC_SOFT) &&
+	    ((fdq->d_spc_softlimit >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_warn)))
+		fdq->d_fieldmask ^= QC_SPC_SOFT;
 
-	if ((fdq->d_fieldmask & FS_DQ_BHARD) &&
-	    ((fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_limit)))
-		fdq->d_fieldmask ^= FS_DQ_BHARD;
+	if ((fdq->d_fieldmask & QC_SPC_HARD) &&
+	    ((fdq->d_spc_hardlimit >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_limit)))
+		fdq->d_fieldmask ^= QC_SPC_HARD;
 
-	if ((fdq->d_fieldmask & FS_DQ_BCOUNT) &&
-	    ((fdq->d_bcount >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_value)))
-		fdq->d_fieldmask ^= FS_DQ_BCOUNT;
+	if ((fdq->d_fieldmask & QC_SPACE) &&
+	    ((fdq->d_space >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_value)))
+		fdq->d_fieldmask ^= QC_SPACE;
 
 	if (fdq->d_fieldmask == 0)
 		goto out_i;

fs/nfsd/nfs4state.c

···
 		status = nfs4_setlease(dp);
 		goto out;
 	}
-	atomic_inc(&fp->fi_delegees);
 	if (fp->fi_had_conflict) {
 		status = -EAGAIN;
 		goto out_unlock;
 	}
+	atomic_inc(&fp->fi_delegees);
 	hash_delegation_locked(dp, fp);
 	status = 0;
 out_unlock:

fs/notify/fanotify/fanotify_user.c

···
 	struct fsnotify_event *kevent;
 	char __user *start;
 	int ret;
-	DEFINE_WAIT(wait);
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
 	start = buf;
 	group = file->private_data;
 
 	pr_debug("%s: group=%p\n", __func__, group);
 
+	add_wait_queue(&group->notification_waitq, &wait);
 	while (1) {
-		prepare_to_wait(&group->notification_waitq, &wait, TASK_INTERRUPTIBLE);
-
 		mutex_lock(&group->notification_mutex);
 		kevent = get_one_event(group, count);
 		mutex_unlock(&group->notification_mutex);
···
 
 			if (start != buf)
 				break;
-			schedule();
+
+			wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
 			continue;
 		}
 
···
 		buf += ret;
 		count -= ret;
 	}
+	remove_wait_queue(&group->notification_waitq, &wait);
 
-	finish_wait(&group->notification_waitq, &wait);
 	if (start != buf && ret != -EFAULT)
 		ret = buf - start;
 	return ret;

fs/ocfs2/dlm/dlmrecovery.c

···
 	dlm_lockres_drop_inflight_ref(dlm, res);
 	spin_unlock(&res->spinlock);
 
-	if (ret < 0) {
+	if (ret < 0)
 		mlog_errno(ret);
-		if (newlock)
-			dlm_lock_put(newlock);
-	}
 
 	return ret;
 }

fs/ocfs2/namei.c

···
 				     struct inode *inode,
 				     const char *symname);
 
+static int ocfs2_double_lock(struct ocfs2_super *osb,
+			     struct buffer_head **bh1,
+			     struct inode *inode1,
+			     struct buffer_head **bh2,
+			     struct inode *inode2,
+			     int rename);
+
+static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2);
 /* An orphan dir name is an 8 byte value, printed as a hex string */
 #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64)))
 
···
 {
 	handle_t *handle;
 	struct inode *inode = old_dentry->d_inode;
+	struct inode *old_dir = old_dentry->d_parent->d_inode;
 	int err;
 	struct buffer_head *fe_bh = NULL;
+	struct buffer_head *old_dir_bh = NULL;
 	struct buffer_head *parent_fe_bh = NULL;
 	struct ocfs2_dinode *fe = NULL;
 	struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
···
 
 	dquot_initialize(dir);
 
-	err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT);
+	err = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
+			&parent_fe_bh, dir, 0);
 	if (err < 0) {
 		if (err != -ENOENT)
 			mlog_errno(err);
 		return err;
+	}
+
+	/* make sure both dirs have bhs
+	 * get an extra ref on old_dir_bh if old==new */
+	if (!parent_fe_bh) {
+		if (old_dir_bh) {
+			parent_fe_bh = old_dir_bh;
+			get_bh(parent_fe_bh);
+		} else {
+			mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str);
+			err = -EIO;
+			goto out;
+		}
 	}
 
 	if (!dir->i_nlink) {
···
 		goto out;
 	}
 
-	err = ocfs2_lookup_ino_from_name(dir, old_dentry->d_name.name,
+	err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
 			old_dentry->d_name.len, &old_de_ino);
 	if (err) {
 		err = -ENOENT;
···
 	ocfs2_inode_unlock(inode, 1);
 
 out:
-	ocfs2_inode_unlock(dir, 1);
+	ocfs2_double_unlock(old_dir, dir);
 
 	brelse(fe_bh);
 	brelse(parent_fe_bh);
+	brelse(old_dir_bh);
 
 	ocfs2_free_dir_lookup_result(&lookup);
 
···
 }
 
 /*
- * The only place this should be used is rename!
+ * The only place this should be used is rename and link!
  * if they have the same id, then the 1st one is the only one locked.
  */
 static int ocfs2_double_lock(struct ocfs2_super *osb,
 			     struct buffer_head **bh1,
 			     struct inode *inode1,
 			     struct buffer_head **bh2,
-			     struct inode *inode2)
+			     struct inode *inode2,
+			     int rename)
 {
 	int status;
 	int inode1_is_ancestor, inode2_is_ancestor;
···
 		}
 		/* lock id2 */
 		status = ocfs2_inode_lock_nested(inode2, bh2, 1,
-						 OI_LS_RENAME1);
+				rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT);
 		if (status < 0) {
 			if (status != -ENOENT)
 				mlog_errno(status);
···
 	}
 
 	/* lock id1 */
-	status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2);
+	status = ocfs2_inode_lock_nested(inode1, bh1, 1,
+			rename == 1 ?  OI_LS_RENAME2 : OI_LS_PARENT);
 	if (status < 0) {
 		/*
 		 * An error return must mean that no cluster locks
···
 
 	/* if old and new are the same, this'll just do one lock. */
 	status = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
-				   &new_dir_bh, new_dir);
+				   &new_dir_bh, new_dir, 1);
 	if (status < 0) {
 		mlog_errno(status);
 		goto bail;

fs/quota/dquot.c

···
 }
 
 /* Generic routine for getting common part of quota structure */
-static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
+static void do_get_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 {
 	struct mem_dqblk *dm = &dquot->dq_dqb;
 
 	memset(di, 0, sizeof(*di));
-	di->d_version = FS_DQUOT_VERSION;
-	di->d_flags = dquot->dq_id.type == USRQUOTA ?
-			FS_USER_QUOTA : FS_GROUP_QUOTA;
-	di->d_id = from_kqid_munged(current_user_ns(), dquot->dq_id);
-
 	spin_lock(&dq_data_lock);
-	di->d_blk_hardlimit = stoqb(dm->dqb_bhardlimit);
-	di->d_blk_softlimit = stoqb(dm->dqb_bsoftlimit);
+	di->d_spc_hardlimit = dm->dqb_bhardlimit;
+	di->d_spc_softlimit = dm->dqb_bsoftlimit;
 	di->d_ino_hardlimit = dm->dqb_ihardlimit;
 	di->d_ino_softlimit = dm->dqb_isoftlimit;
-	di->d_bcount = dm->dqb_curspace + dm->dqb_rsvspace;
-	di->d_icount = dm->dqb_curinodes;
-	di->d_btimer = dm->dqb_btime;
-	di->d_itimer = dm->dqb_itime;
+	di->d_space = dm->dqb_curspace + dm->dqb_rsvspace;
+	di->d_ino_count = dm->dqb_curinodes;
+	di->d_spc_timer = dm->dqb_btime;
+	di->d_ino_timer = dm->dqb_itime;
 	spin_unlock(&dq_data_lock);
 }
 
 int dquot_get_dqblk(struct super_block *sb, struct kqid qid,
-		    struct fs_disk_quota *di)
+		    struct qc_dqblk *di)
 {
 	struct dquot *dquot;
 
···
 }
 EXPORT_SYMBOL(dquot_get_dqblk);
 
-#define VFS_FS_DQ_MASK \
-	(FS_DQ_BCOUNT | FS_DQ_BSOFT | FS_DQ_BHARD | \
-	 FS_DQ_ICOUNT | FS_DQ_ISOFT | FS_DQ_IHARD | \
-	 FS_DQ_BTIMER | FS_DQ_ITIMER)
+#define VFS_QC_MASK \
+	(QC_SPACE | QC_SPC_SOFT | QC_SPC_HARD | \
+	 QC_INO_COUNT | QC_INO_SOFT | QC_INO_HARD | \
+	 QC_SPC_TIMER | QC_INO_TIMER)
 
 /* Generic routine for setting common part of quota structure */
-static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
+static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 {
 	struct mem_dqblk *dm = &dquot->dq_dqb;
 	int check_blim = 0, check_ilim = 0;
 	struct mem_dqinfo *dqi = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type];
 
-	if (di->d_fieldmask & ~VFS_FS_DQ_MASK)
+	if (di->d_fieldmask & ~VFS_QC_MASK)
 		return -EINVAL;
 
-	if (((di->d_fieldmask & FS_DQ_BSOFT) &&
-	     (di->d_blk_softlimit > dqi->dqi_maxblimit)) ||
-	    ((di->d_fieldmask & FS_DQ_BHARD) &&
-	     (di->d_blk_hardlimit > dqi->dqi_maxblimit)) ||
-	    ((di->d_fieldmask & FS_DQ_ISOFT) &&
+	if (((di->d_fieldmask & QC_SPC_SOFT) &&
+	     stoqb(di->d_spc_softlimit) > dqi->dqi_maxblimit) ||
+	    ((di->d_fieldmask & QC_SPC_HARD) &&
+	     stoqb(di->d_spc_hardlimit) > dqi->dqi_maxblimit) ||
+	    ((di->d_fieldmask & QC_INO_SOFT) &&
 	     (di->d_ino_softlimit > dqi->dqi_maxilimit)) ||
-	    ((di->d_fieldmask & FS_DQ_IHARD) &&
+	    ((di->d_fieldmask & QC_INO_HARD) &&
 	     (di->d_ino_hardlimit > dqi->dqi_maxilimit)))
 		return -ERANGE;
 
 	spin_lock(&dq_data_lock);
-	if (di->d_fieldmask & FS_DQ_BCOUNT) {
-		dm->dqb_curspace = di->d_bcount - dm->dqb_rsvspace;
+	if (di->d_fieldmask & QC_SPACE) {
+		dm->dqb_curspace = di->d_space - dm->dqb_rsvspace;
 		check_blim = 1;
 		set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
 	}
 
-	if (di->d_fieldmask & FS_DQ_BSOFT)
-		dm->dqb_bsoftlimit = qbtos(di->d_blk_softlimit);
-	if (di->d_fieldmask & FS_DQ_BHARD)
-		dm->dqb_bhardlimit = qbtos(di->d_blk_hardlimit);
-	if (di->d_fieldmask & (FS_DQ_BSOFT | FS_DQ_BHARD)) {
+	if (di->d_fieldmask & QC_SPC_SOFT)
+		dm->dqb_bsoftlimit = di->d_spc_softlimit;
+	if (di->d_fieldmask & QC_SPC_HARD)
+		dm->dqb_bhardlimit = di->d_spc_hardlimit;
+	if (di->d_fieldmask & (QC_SPC_SOFT | QC_SPC_HARD)) {
 		check_blim = 1;
 		set_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
 	}
 
-	if (di->d_fieldmask & FS_DQ_ICOUNT) {
-		dm->dqb_curinodes = di->d_icount;
+	if (di->d_fieldmask & QC_INO_COUNT) {
+		dm->dqb_curinodes = di->d_ino_count;
 		check_ilim = 1;
 		set_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
 	}
 
-	if (di->d_fieldmask & FS_DQ_ISOFT)
+	if (di->d_fieldmask & QC_INO_SOFT)
 		dm->dqb_isoftlimit = di->d_ino_softlimit;
-	if (di->d_fieldmask & FS_DQ_IHARD)
+	if (di->d_fieldmask & QC_INO_HARD)
 		dm->dqb_ihardlimit = di->d_ino_hardlimit;
-	if (di->d_fieldmask & (FS_DQ_ISOFT | FS_DQ_IHARD)) {
+	if (di->d_fieldmask & (QC_INO_SOFT | QC_INO_HARD)) {
 		check_ilim = 1;
 		set_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
 	}
 
-	if (di->d_fieldmask & FS_DQ_BTIMER) {
-		dm->dqb_btime = di->d_btimer;
+	if (di->d_fieldmask & QC_SPC_TIMER) {
+		dm->dqb_btime = di->d_spc_timer;
 		check_blim = 1;
 		set_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
 	}
 
-	if (di->d_fieldmask & FS_DQ_ITIMER) {
-		dm->dqb_itime = di->d_itimer;
+	if (di->d_fieldmask & QC_INO_TIMER) {
+		dm->dqb_itime = di->d_ino_timer;
 		check_ilim = 1;
 		set_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
 	}
···
 		    dm->dqb_curspace < dm->dqb_bsoftlimit) {
 			dm->dqb_btime = 0;
 			clear_bit(DQ_BLKS_B, &dquot->dq_flags);
-		} else if (!(di->d_fieldmask & FS_DQ_BTIMER))
+		} else if (!(di->d_fieldmask & QC_SPC_TIMER))
 			/* Set grace only if user hasn't provided his own... */
 			dm->dqb_btime = get_seconds() + dqi->dqi_bgrace;
 	}
···
 		    dm->dqb_curinodes < dm->dqb_isoftlimit) {
 			dm->dqb_itime = 0;
 			clear_bit(DQ_INODES_B, &dquot->dq_flags);
-		} else if (!(di->d_fieldmask & FS_DQ_ITIMER))
+		} else if (!(di->d_fieldmask & QC_INO_TIMER))
 			/* Set grace only if user hasn't provided his own... */
 			dm->dqb_itime = get_seconds() + dqi->dqi_igrace;
 	}
···
 }
 
 int dquot_set_dqblk(struct super_block *sb, struct kqid qid,
-		  struct fs_disk_quota *di)
+		  struct qc_dqblk *di)
 {
 	struct dquot *dquot;
 	int rc;

fs/quota/quota.c

···
 	return sb->s_qcop->set_info(sb, type, &info);
 }
 
-static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src)
+static inline qsize_t qbtos(qsize_t blocks)
+{
+	return blocks << QIF_DQBLKSIZE_BITS;
+}
+
+static inline qsize_t stoqb(qsize_t space)
+{
+	return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
+}
+
+static void copy_to_if_dqblk(struct if_dqblk *dst, struct qc_dqblk *src)
 {
 	memset(dst, 0, sizeof(*dst));
-	dst->dqb_bhardlimit = src->d_blk_hardlimit;
-	dst->dqb_bsoftlimit = src->d_blk_softlimit;
-	dst->dqb_curspace = src->d_bcount;
+	dst->dqb_bhardlimit = stoqb(src->d_spc_hardlimit);
+	dst->dqb_bsoftlimit = stoqb(src->d_spc_softlimit);
+	dst->dqb_curspace = src->d_space;
 	dst->dqb_ihardlimit = src->d_ino_hardlimit;
 	dst->dqb_isoftlimit = src->d_ino_softlimit;
-	dst->dqb_curinodes = src->d_icount;
-	dst->dqb_btime = src->d_btimer;
-	dst->dqb_itime = src->d_itimer;
+	dst->dqb_curinodes = src->d_ino_count;
+	dst->dqb_btime = src->d_spc_timer;
+	dst->dqb_itime = src->d_ino_timer;
 	dst->dqb_valid = QIF_ALL;
 }
 
···
 			  void __user *addr)
 {
 	struct kqid qid;
-	struct fs_disk_quota fdq;
+	struct qc_dqblk fdq;
 	struct if_dqblk idq;
 	int ret;
 
···
 	return 0;
 }
 
-static void copy_from_if_dqblk(struct fs_disk_quota *dst, struct if_dqblk *src)
+static void copy_from_if_dqblk(struct qc_dqblk *dst, struct if_dqblk *src)
 {
-	dst->d_blk_hardlimit = src->dqb_bhardlimit;
-	dst->d_blk_softlimit  = src->dqb_bsoftlimit;
-	dst->d_bcount = src->dqb_curspace;
+	dst->d_spc_hardlimit = qbtos(src->dqb_bhardlimit);
+	dst->d_spc_softlimit = qbtos(src->dqb_bsoftlimit);
+	dst->d_space = src->dqb_curspace;
 	dst->d_ino_hardlimit = src->dqb_ihardlimit;
 	dst->d_ino_softlimit = src->dqb_isoftlimit;
-	dst->d_icount = src->dqb_curinodes;
-	dst->d_btimer = src->dqb_btime;
-	dst->d_itimer = src->dqb_itime;
+	dst->d_ino_count = src->dqb_curinodes;
+	dst->d_spc_timer = src->dqb_btime;
+	dst->d_ino_timer = src->dqb_itime;
 
 	dst->d_fieldmask = 0;
 	if (src->dqb_valid & QIF_BLIMITS)
-		dst->d_fieldmask |= FS_DQ_BSOFT | FS_DQ_BHARD;
+		dst->d_fieldmask |= QC_SPC_SOFT | QC_SPC_HARD;
 	if (src->dqb_valid & QIF_SPACE)
-		dst->d_fieldmask |= FS_DQ_BCOUNT;
+		dst->d_fieldmask |= QC_SPACE;
 	if (src->dqb_valid & QIF_ILIMITS)
-		dst->d_fieldmask |= FS_DQ_ISOFT | FS_DQ_IHARD;
+		dst->d_fieldmask |= QC_INO_SOFT | QC_INO_HARD;
 	if (src->dqb_valid & QIF_INODES)
-		dst->d_fieldmask |= FS_DQ_ICOUNT;
+		dst->d_fieldmask |= QC_INO_COUNT;
 	if (src->dqb_valid & QIF_BTIME)
-		dst->d_fieldmask |= FS_DQ_BTIMER;
+		dst->d_fieldmask |= QC_SPC_TIMER;
 	if (src->dqb_valid & QIF_ITIME)
-		dst->d_fieldmask |= FS_DQ_ITIMER;
+		dst->d_fieldmask |= QC_INO_TIMER;
 }
 
 static int quota_setquota(struct super_block *sb, int type, qid_t id,
 			  void __user *addr)
 {
-	struct fs_disk_quota fdq;
+	struct qc_dqblk fdq;
 	struct if_dqblk idq;
 	struct kqid qid;
 
···
 	return ret;
 }
 
+/*
+ * XFS defines BBTOB and BTOBB macros inside fs/xfs/ and we cannot move them
+ * out of there as xfsprogs rely on definitions being in that header file. So
+ * just define same functions here for quota purposes.
+ */
+#define XFS_BB_SHIFT 9
+
+static inline u64 quota_bbtob(u64 blocks)
+{
+	return blocks << XFS_BB_SHIFT;
+}
+
+static inline u64 quota_btobb(u64 bytes)
+{
+	return (bytes + (1 << XFS_BB_SHIFT) - 1) >> XFS_BB_SHIFT;
+}
+
+static void copy_from_xfs_dqblk(struct qc_dqblk *dst, struct fs_disk_quota *src)
+{
+	dst->d_spc_hardlimit = quota_bbtob(src->d_blk_hardlimit);
+	dst->d_spc_softlimit = quota_bbtob(src->d_blk_softlimit);
+	dst->d_ino_hardlimit = src->d_ino_hardlimit;
+	dst->d_ino_softlimit = src->d_ino_softlimit;
+	dst->d_space = quota_bbtob(src->d_bcount);
+	dst->d_ino_count = src->d_icount;
+	dst->d_ino_timer = src->d_itimer;
+	dst->d_spc_timer = src->d_btimer;
+	dst->d_ino_warns = src->d_iwarns;
+	dst->d_spc_warns = src->d_bwarns;
+	dst->d_rt_spc_hardlimit = quota_bbtob(src->d_rtb_hardlimit);
+	dst->d_rt_spc_softlimit = quota_bbtob(src->d_rtb_softlimit);
+	dst->d_rt_space = quota_bbtob(src->d_rtbcount);
+	dst->d_rt_spc_timer = src->d_rtbtimer;
+	dst->d_rt_spc_warns = src->d_rtbwarns;
+	dst->d_fieldmask = 0;
+	if (src->d_fieldmask & FS_DQ_ISOFT)
+		dst->d_fieldmask |= QC_INO_SOFT;
+	if (src->d_fieldmask & FS_DQ_IHARD)
+		dst->d_fieldmask |= QC_INO_HARD;
+	if (src->d_fieldmask & FS_DQ_BSOFT)
+		dst->d_fieldmask |= QC_SPC_SOFT;
+	if (src->d_fieldmask & FS_DQ_BHARD)
+		dst->d_fieldmask |= QC_SPC_HARD;
+	if (src->d_fieldmask & FS_DQ_RTBSOFT)
+		dst->d_fieldmask |= QC_RT_SPC_SOFT;
+	if (src->d_fieldmask & FS_DQ_RTBHARD)
+		dst->d_fieldmask |= QC_RT_SPC_HARD;
+	if (src->d_fieldmask & FS_DQ_BTIMER)
+		dst->d_fieldmask |= QC_SPC_TIMER;
+	if (src->d_fieldmask & FS_DQ_ITIMER)
+		dst->d_fieldmask |= QC_INO_TIMER;
+	if (src->d_fieldmask & FS_DQ_RTBTIMER)
+		dst->d_fieldmask |= QC_RT_SPC_TIMER;
+	if (src->d_fieldmask & FS_DQ_BWARNS)
+		dst->d_fieldmask |= QC_SPC_WARNS;
+	if (src->d_fieldmask & FS_DQ_IWARNS)
+		dst->d_fieldmask |= QC_INO_WARNS;
+	if (src->d_fieldmask & FS_DQ_RTBWARNS)
+		dst->d_fieldmask |= QC_RT_SPC_WARNS;
+	if (src->d_fieldmask & FS_DQ_BCOUNT)
+		dst->d_fieldmask |= QC_SPACE;
+	if (src->d_fieldmask & FS_DQ_ICOUNT)
+		dst->d_fieldmask |= QC_INO_COUNT;
+	if (src->d_fieldmask & FS_DQ_RTBCOUNT)
+		dst->d_fieldmask |= QC_RT_SPACE;
+}
+
 static int quota_setxquota(struct super_block *sb, int type, qid_t id,
 			   void __user *addr)
 {
 	struct fs_disk_quota fdq;
+	struct qc_dqblk qdq;
 	struct kqid qid;
 
 	if (copy_from_user(&fdq, addr, sizeof(fdq)))
···
 	qid = make_kqid(current_user_ns(), type, id);
 	if (!qid_valid(qid))
 		return -EINVAL;
-	return sb->s_qcop->set_dqblk(sb, qid, &fdq);
+	copy_from_xfs_dqblk(&qdq, &fdq);
+	return sb->s_qcop->set_dqblk(sb, qid, &qdq);
+}
+
+static void copy_to_xfs_dqblk(struct fs_disk_quota *dst, struct qc_dqblk *src,
+			      int type, qid_t id)
+{
+	memset(dst, 0, sizeof(*dst));
+	dst->d_version = FS_DQUOT_VERSION;
+	dst->d_id = id;
+	if (type == USRQUOTA)
+		dst->d_flags = FS_USER_QUOTA;
+	else if (type == PRJQUOTA)
+		dst->d_flags = FS_PROJ_QUOTA;
+	else
+		dst->d_flags = FS_GROUP_QUOTA;
+	dst->d_blk_hardlimit = quota_btobb(src->d_spc_hardlimit);
+	dst->d_blk_softlimit = quota_btobb(src->d_spc_softlimit);
+	dst->d_ino_hardlimit = src->d_ino_hardlimit;
+	dst->d_ino_softlimit = src->d_ino_softlimit;
+	dst->d_bcount = quota_btobb(src->d_space);
+	dst->d_icount = src->d_ino_count;
+	dst->d_itimer = src->d_ino_timer;
+	dst->d_btimer = src->d_spc_timer;
+	dst->d_iwarns = src->d_ino_warns;
+	dst->d_bwarns = src->d_spc_warns;
+	dst->d_rtb_hardlimit = quota_btobb(src->d_rt_spc_hardlimit);
+	dst->d_rtb_softlimit = quota_btobb(src->d_rt_spc_softlimit);
+	dst->d_rtbcount = quota_btobb(src->d_rt_space);
+	dst->d_rtbtimer = src->d_rt_spc_timer;
+	dst->d_rtbwarns = src->d_rt_spc_warns;
 }
 
 static int quota_getxquota(struct super_block *sb, int type, qid_t id,
 			   void __user *addr)
 {
 	struct fs_disk_quota fdq;
+	struct qc_dqblk qdq;
 	struct kqid qid;
 	int ret;
 
···
 	qid = make_kqid(current_user_ns(), type, id);
 	if (!qid_valid(qid))
 		return -EINVAL;
-	ret = sb->s_qcop->get_dqblk(sb, qid, &fdq);
-	if (!ret && copy_to_user(addr, &fdq, sizeof(fdq)))
+	ret = sb->s_qcop->get_dqblk(sb, qid, &qdq);
+	if (ret)
+		return ret;
+	copy_to_xfs_dqblk(&fdq, &qdq, type, id);
+	if (copy_to_user(addr, &fdq, sizeof(fdq)))
 		return -EFAULT;
 	return ret;
 }

fs/udf/file.c

···
 static int udf_release_file(struct inode *inode, struct file *filp)
 {
 	if (filp->f_mode & FMODE_WRITE &&
-	    atomic_read(&inode->i_writecount) > 1) {
+	    atomic_read(&inode->i_writecount) == 1) {
 		/*
 		 * Grab i_mutex to avoid races with writes changing i_size
 		 * while we are running.

fs/xfs/xfs_qm.h

···
 /* quota ops */
 extern int		xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
 extern int		xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
-					uint, struct fs_disk_quota *);
+					uint, struct qc_dqblk *);
 extern int		xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
-					struct fs_disk_quota *);
+					struct qc_dqblk *);
 extern int		xfs_qm_scall_getqstat(struct xfs_mount *,
 					struct fs_quota_stat *);
 extern int		xfs_qm_scall_getqstatv(struct xfs_mount *,

fs/xfs/xfs_qm_syscalls.c

···
 STATIC int	xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
 					uint);
 STATIC uint	xfs_qm_export_flags(uint);
-STATIC uint	xfs_qm_export_qtype_flags(uint);
 
 /*
  * Turn off quota accounting and/or enforcement for all udquots and/or
···
 	return 0;
 }
 
-#define XFS_DQ_MASK \
-	(FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
+#define XFS_QC_MASK \
+	(QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
 
 /*
  * Adjust quota limits, and start/stop timers accordingly.
···
 	struct xfs_mount	*mp,
 	xfs_dqid_t		id,
 	uint			type,
-	fs_disk_quota_t		*newlim)
+	struct qc_dqblk		*newlim)
 {
 	struct xfs_quotainfo	*q = mp->m_quotainfo;
 	struct xfs_disk_dquot	*ddq;
···
 	int			error;
 	xfs_qcnt_t		hard, soft;
 
-	if (newlim->d_fieldmask & ~XFS_DQ_MASK)
+	if (newlim->d_fieldmask & ~XFS_QC_MASK)
 		return -EINVAL;
-	if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
+	if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
 		return 0;
 
 	/*
···
 	/*
 	 * Make sure that hardlimits are >= soft limits before changing.
 	 */
-	hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
-		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
+	hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
+		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
 			be64_to_cpu(ddq->d_blk_hardlimit);
-	soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
-		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
+	soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
+		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
 			be64_to_cpu(ddq->d_blk_softlimit);
 	if (hard == 0 || hard >= soft) {
 		ddq->d_blk_hardlimit = cpu_to_be64(hard);
···
 	} else {
 		xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
 	}
-	hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
-		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
+	hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
+		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
 			be64_to_cpu(ddq->d_rtb_hardlimit);
-	soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
-		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
+	soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
+		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
 			be64_to_cpu(ddq->d_rtb_softlimit);
 	if (hard == 0 || hard >= soft) {
 		ddq->d_rtb_hardlimit = cpu_to_be64(hard);
···
 		xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
 	}
 
-	hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
+	hard = (newlim->d_fieldmask & QC_INO_HARD) ?
 		(xfs_qcnt_t) newlim->d_ino_hardlimit :
 			be64_to_cpu(ddq->d_ino_hardlimit);
-	soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
+	soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
 		(xfs_qcnt_t) newlim->d_ino_softlimit :
 			be64_to_cpu(ddq->d_ino_softlimit);
 	if (hard == 0 || hard >= soft) {
···
 	/*
 	 * Update warnings counter(s) if requested
 	 */
-	if (newlim->d_fieldmask & FS_DQ_BWARNS)
-		ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns);
-	if (newlim->d_fieldmask & FS_DQ_IWARNS)
-		ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns);
-	if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
-		ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns);
+	if (newlim->d_fieldmask & QC_SPC_WARNS)
+		ddq->d_bwarns = cpu_to_be16(newlim->d_spc_warns);
+	if (newlim->d_fieldmask & QC_INO_WARNS)
+		ddq->d_iwarns = cpu_to_be16(newlim->d_ino_warns);
+	if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
+		ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
 
 	if (id == 0) {
 		/*
···
 		 * soft and hard limit values (already done, above), and
 		 * for warnings.
 		 */
-		if (newlim->d_fieldmask & FS_DQ_BTIMER) {
-			q->qi_btimelimit = newlim->d_btimer;
-			ddq->d_btimer = cpu_to_be32(newlim->d_btimer);
+		if (newlim->d_fieldmask & QC_SPC_TIMER) {
+			q->qi_btimelimit = newlim->d_spc_timer;
+			ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
 		}
-		if (newlim->d_fieldmask & FS_DQ_ITIMER) {
-			q->qi_itimelimit = newlim->d_itimer;
-			ddq->d_itimer = cpu_to_be32(newlim->d_itimer);
+		if (newlim->d_fieldmask & QC_INO_TIMER) {
+			q->qi_itimelimit = newlim->d_ino_timer;
+			ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
 		}
-		if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
-			q->qi_rtbtimelimit = newlim->d_rtbtimer;
-			ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer);
+		if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
+			q->qi_rtbtimelimit = newlim->d_rt_spc_timer;
+			ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
 		}
-		if (newlim->d_fieldmask & FS_DQ_BWARNS)
-			q->qi_bwarnlimit = newlim->d_bwarns;
-		if (newlim->d_fieldmask & FS_DQ_IWARNS)
-			q->qi_iwarnlimit = newlim->d_iwarns;
-		if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
-			q->qi_rtbwarnlimit = newlim->d_rtbwarns;
+		if (newlim->d_fieldmask & QC_SPC_WARNS)
+			q->qi_bwarnlimit = newlim->d_spc_warns;
+		if (newlim->d_fieldmask & QC_INO_WARNS)
+			q->qi_iwarnlimit = newlim->d_ino_warns;
+		if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
+			q->qi_rtbwarnlimit = newlim->d_rt_spc_warns;
 	} else {
 		/*
 		 * If the user is now over quota, start the timelimit.
···
 	struct xfs_mount	*mp,
 	xfs_dqid_t		id,
 	uint			type,
-	struct fs_disk_quota	*dst)
+	struct qc_dqblk		*dst)
 {
 	struct xfs_dquot	*dqp;
 	int			error;
···
 	}
 
 	memset(dst, 0, sizeof(*dst));
-	dst->d_version = FS_DQUOT_VERSION;
-	dst->d_flags = xfs_qm_export_qtype_flags(dqp->q_core.d_flags);
-	dst->d_id = be32_to_cpu(dqp->q_core.d_id);
-	dst->d_blk_hardlimit =
-		XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
-	dst->d_blk_softlimit =
-		XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
+	dst->d_spc_hardlimit =
+		XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
+	dst->d_spc_softlimit =
+		XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
 	dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
 	dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
-	dst->d_bcount = XFS_FSB_TO_BB(mp, dqp->q_res_bcount);
-	dst->d_icount = dqp->q_res_icount;
-	dst->d_btimer = be32_to_cpu(dqp->q_core.d_btimer);
-	dst->d_itimer = be32_to_cpu(dqp->q_core.d_itimer);
-	dst->d_iwarns = be16_to_cpu(dqp->q_core.d_iwarns);
-	dst->d_bwarns = be16_to_cpu(dqp->q_core.d_bwarns);
-	dst->d_rtb_hardlimit =
-		XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
-	dst->d_rtb_softlimit =
-		XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
-	dst->d_rtbcount = XFS_FSB_TO_BB(mp, dqp->q_res_rtbcount);
-	dst->d_rtbtimer = be32_to_cpu(dqp->q_core.d_rtbtimer);
-	dst->d_rtbwarns = be16_to_cpu(dqp->q_core.d_rtbwarns);
+	dst->d_space = XFS_FSB_TO_B(mp, dqp->q_res_bcount);
+	dst->d_ino_count = dqp->q_res_icount;
+	dst->d_spc_timer = be32_to_cpu(dqp->q_core.d_btimer);
+	dst->d_ino_timer = be32_to_cpu(dqp->q_core.d_itimer);
+	dst->d_ino_warns = be16_to_cpu(dqp->q_core.d_iwarns);
+	dst->d_spc_warns = be16_to_cpu(dqp->q_core.d_bwarns);
+	dst->d_rt_spc_hardlimit =
+		XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
+	dst->d_rt_spc_softlimit =
+		XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
+	dst->d_rt_space = XFS_FSB_TO_B(mp, dqp->q_res_rtbcount);
+	dst->d_rt_spc_timer = be32_to_cpu(dqp->q_core.d_rtbtimer);
+	dst->d_rt_spc_warns = be16_to_cpu(dqp->q_core.d_rtbwarns);
 
 	/*
 	 * Internally, we don't reset all the timers when quota enforcement
···
 	     dqp->q_core.d_flags == XFS_DQ_GROUP) ||
 	    (!XFS_IS_PQUOTA_ENFORCED(mp) &&
 	     dqp->q_core.d_flags == XFS_DQ_PROJ)) {
-		dst->d_btimer = 0;
-		dst->d_itimer = 0;
-		dst->d_rtbtimer = 0;
+		dst->d_spc_timer = 0;
+		dst->d_ino_timer = 0;
+		dst->d_rt_spc_timer = 0;
 	}
 
 #ifdef DEBUG
-	if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
-	     (XFS_IS_GQUOTA_ENFORCED(mp) && dst->d_flags == FS_GROUP_QUOTA) ||
-	     (XFS_IS_PQUOTA_ENFORCED(mp) && dst->d_flags == FS_PROJ_QUOTA)) &&
-	    dst->d_id != 0) {
-		if ((dst->d_bcount > dst->d_blk_softlimit) &&
-		    (dst->d_blk_softlimit > 0)) {
-			ASSERT(dst->d_btimer != 0);
+	if (((XFS_IS_UQUOTA_ENFORCED(mp) && type == XFS_DQ_USER) ||
+	     (XFS_IS_GQUOTA_ENFORCED(mp) && type == XFS_DQ_GROUP) ||
+	     (XFS_IS_PQUOTA_ENFORCED(mp) && type == XFS_DQ_PROJ)) &&
+	    id != 0) {
+		if ((dst->d_space > dst->d_spc_softlimit) &&
+		    (dst->d_spc_softlimit > 0)) {
+			ASSERT(dst->d_spc_timer != 0);
 		}
-		if ((dst->d_icount > dst->d_ino_softlimit) &&
+		if ((dst->d_ino_count > dst->d_ino_softlimit) &&
 		    (dst->d_ino_softlimit > 0)) {
-			ASSERT(dst->d_itimer != 0);
+			ASSERT(dst->d_ino_timer != 0);
 		}
 	}
 #endif
 out_put:
 	xfs_qm_dqput(dqp);
 	return error;
-}
-
-STATIC uint
-xfs_qm_export_qtype_flags(
-	uint flags)
-{
-	/*
-	 * Can't be more than one, or none.
-	 */
-	ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) !=
-		(FS_PROJ_QUOTA | FS_USER_QUOTA));
-	ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) !=
-		(FS_PROJ_QUOTA | FS_GROUP_QUOTA));
-	ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) !=
-		(FS_USER_QUOTA | FS_GROUP_QUOTA));
-	ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0);
-
-	return (flags & XFS_DQ_USER) ?
-		FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
-			FS_PROJ_QUOTA : FS_GROUP_QUOTA;
 }
 
 STATIC uint

fs/xfs/xfs_quotaops.c

···
 xfs_fs_get_dqblk(
 	struct super_block	*sb,
 	struct kqid		qid,
-	struct fs_disk_quota	*fdq)
+	struct qc_dqblk		*qdq)
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
···
 		return -ESRCH;
 
 	return xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid),
-				      xfs_quota_type(qid.type), fdq);
+				      xfs_quota_type(qid.type), qdq);
 }
 
 STATIC int
 xfs_fs_set_dqblk(
 	struct super_block	*sb,
 	struct kqid		qid,
-	struct fs_disk_quota	*fdq)
+	struct qc_dqblk		*qdq)
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
···
 		return -ESRCH;
 
 	return xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
-				     xfs_quota_type(qid.type), fdq);
+				     xfs_quota_type(qid.type), qdq);
 }
 
 const struct quotactl_ops xfs_quotactl_operations = {

include/acpi/processor.h

···
 struct acpi_processor {
 	acpi_handle handle;
 	u32 acpi_id;
-	u32 apic_id;
-	u32 id;
+	u32 phys_id;	/* CPU hardware ID such as APIC ID for x86 */
+	u32 id;		/* CPU logical ID allocated by OS */
 	u32 pblk;
 	int performance_platform_limit;
 	int throttling_platform_limit;
···
 #endif				/* CONFIG_CPU_FREQ */
 
 /* in processor_core.c */
-int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
-int acpi_map_cpuid(int apic_id, u32 acpi_id);
+int acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
+int acpi_map_cpuid(int phys_id, u32 acpi_id);
 int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
 
 /* in processor_pdc.c */

include/asm-generic/tlb.h

···
 
 static inline void __tlb_reset_range(struct mmu_gather *tlb)
 {
-	tlb->start = TASK_SIZE;
-	tlb->end = 0;
+	if (tlb->fullmm) {
+		tlb->start = tlb->end = ~0;
+	} else {
+		tlb->start = TASK_SIZE;
+		tlb->end = 0;
+	}
 }
 
 /*

include/linux/acpi.h

···
 
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 /* Arch dependent functions for cpu hotplug support */
-int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
-int acpi_unmap_lsapic(int cpu);
+int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu);
+int acpi_unmap_cpu(int cpu);
 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);

include/linux/ceph/osd_client.h

···
 			struct ceph_osd_data osd_data;
 		} extent;
 		struct {
-			__le32 name_len;
-			__le32 value_len;
+			u32 name_len;
+			u32 value_len;
 			__u8 cmp_op;       /* CEPH_OSD_CMPXATTR_OP_* */
 			__u8 cmp_mode;     /* CEPH_OSD_CMPXATTR_MODE_* */
 			struct ceph_osd_data osd_data;

include/linux/compiler.h

···
 	}
 }
 
-static __always_inline void __assign_once_size(volatile void *p, void *res, int size)
+static __always_inline void __write_once_size(volatile void *p, void *res, int size)
 {
 	switch (size) {
 	case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
···
 /*
  * Prevent the compiler from merging or refetching reads or writes. The
  * compiler is also forbidden from reordering successive instances of
- * READ_ONCE, ASSIGN_ONCE and ACCESS_ONCE (see below), but only when the
+ * READ_ONCE, WRITE_ONCE and ACCESS_ONCE (see below), but only when the
  * compiler is aware of some particular ordering.  One way to make the
  * compiler aware of ordering is to put the two invocations of READ_ONCE,
- * ASSIGN_ONCE or ACCESS_ONCE() in different C statements.
+ * WRITE_ONCE or ACCESS_ONCE() in different C statements.
  *
  * In contrast to ACCESS_ONCE these two macros will also work on aggregate
  * data types like structs or unions. If the size of the accessed data
  * type exceeds the word size of the machine (e.g., 32 bits or 64 bits)
- * READ_ONCE() and ASSIGN_ONCE()  will fall back to memcpy and print a
+ * READ_ONCE() and WRITE_ONCE()  will fall back to memcpy and print a
  * compile-time warning.
  *
  * Their two major use cases are: (1) Mediating communication between
···
 #define READ_ONCE(x) \
 	({ typeof(x) __val; __read_once_size(&x, &__val, sizeof(__val)); __val; })
 
-#define ASSIGN_ONCE(val, x) \
-	({ typeof(x) __val; __val = val; __assign_once_size(&x, &__val, sizeof(__val)); __val; })
+#define WRITE_ONCE(x, val) \
+	({ typeof(x) __val; __val = val; __write_once_size(&x, &__val, sizeof(__val)); __val; })
 
 #endif /* __KERNEL__ */
 

include/linux/fs.h

···
 #define FMODE_CAN_WRITE         ((__force fmode_t)0x40000)
 
 /* File was opened by fanotify and shouldn't generate fanotify events */
-#define FMODE_NONOTIFY		((__force fmode_t)0x1000000)
+#define FMODE_NONOTIFY		((__force fmode_t)0x4000000)
 
 /*
  * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector

include/linux/kdb.h

···
  * Copyright (C) 2009 Jason Wessel <[e-mail]>
  */
 
+/* Shifted versions of the command enable bits are be used if the command
+ * has no arguments (see kdb_check_flags). This allows commands, such as
+ * go, to have different permissions depending upon whether it is called
+ * with an argument.
+ */
+#define KDB_ENABLE_NO_ARGS_SHIFT 10
+
 typedef enum {
-	KDB_REPEAT_NONE = 0,	/* Do not repeat this command */
-	KDB_REPEAT_NO_ARGS,	/* Repeat the command without arguments */
-	KDB_REPEAT_WITH_ARGS,	/* Repeat the command including its arguments */
-} kdb_repeat_t;
+	KDB_ENABLE_ALL = (1 << 0), /* Enable everything */
+	KDB_ENABLE_MEM_READ = (1 << 1),
+	KDB_ENABLE_MEM_WRITE = (1 << 2),
+	KDB_ENABLE_REG_READ = (1 << 3),
+	KDB_ENABLE_REG_WRITE = (1 << 4),
+	KDB_ENABLE_INSPECT = (1 << 5),
+	KDB_ENABLE_FLOW_CTRL = (1 << 6),
+	KDB_ENABLE_SIGNAL = (1 << 7),
+	KDB_ENABLE_REBOOT = (1 << 8),
+	/* User exposed values stop here, all remaining flags are
+	 * exclusively used to describe a commands behaviour.
+	 */
+
+	KDB_ENABLE_ALWAYS_SAFE = (1 << 9),
+	KDB_ENABLE_MASK = (1 << KDB_ENABLE_NO_ARGS_SHIFT) - 1,
+
+	KDB_ENABLE_ALL_NO_ARGS = KDB_ENABLE_ALL << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_MEM_READ_NO_ARGS = KDB_ENABLE_MEM_READ
+				      << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_MEM_WRITE_NO_ARGS = KDB_ENABLE_MEM_WRITE
+				       << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_REG_READ_NO_ARGS = KDB_ENABLE_REG_READ
+				      << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_REG_WRITE_NO_ARGS = KDB_ENABLE_REG_WRITE
+				       << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_INSPECT_NO_ARGS = KDB_ENABLE_INSPECT
+				     << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_FLOW_CTRL_NO_ARGS = KDB_ENABLE_FLOW_CTRL
+				       << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_SIGNAL_NO_ARGS = KDB_ENABLE_SIGNAL
+				    << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_REBOOT_NO_ARGS = KDB_ENABLE_REBOOT
+				    << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_ALWAYS_SAFE_NO_ARGS = KDB_ENABLE_ALWAYS_SAFE
+					 << KDB_ENABLE_NO_ARGS_SHIFT,
+	KDB_ENABLE_MASK_NO_ARGS = KDB_ENABLE_MASK << KDB_ENABLE_NO_ARGS_SHIFT,
+
+	KDB_REPEAT_NO_ARGS = 0x40000000, /* Repeat the command w/o arguments */
+	KDB_REPEAT_WITH_ARGS = 0x80000000, /* Repeat the command with args */
+} kdb_cmdflags_t;
 
 typedef int (*kdb_func_t)(int, const char **);
 
···
 #define KDB_BADLENGTH	(-19)
 #define KDB_NOBP	(-20)
 #define KDB_BADADDR	(-21)
+#define KDB_NOPERM	(-22)
 
 /*
  * kdb_diemsg
···
 
 /* Dynamic kdb shell command registration */
 extern int kdb_register(char *, kdb_func_t, char *, char *, short);
-extern int kdb_register_repeat(char *, kdb_func_t, char *, char *,
-			       short, kdb_repeat_t);
+extern int kdb_register_flags(char *, kdb_func_t, char *, char *,
+			      short, kdb_cmdflags_t);
 extern int kdb_unregister(char *);
 #else /* ! CONFIG_KGDB_KDB */
 static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; }
 static inline void kdb_init(int level) {}
 static inline int kdb_register(char *cmd, kdb_func_t func, char *usage,
 			       char *help, short minlen) { return 0; }
-static inline int kdb_register_repeat(char *cmd, kdb_func_t func, char *usage,
-				      char *help, short minlen,
-				      kdb_repeat_t repeat) { return 0; }
+static inline int kdb_register_flags(char *cmd, kdb_func_t func, char *usage,
+				     char *help, short minlen,
+				     kdb_cmdflags_t flags) { return 0; }
 static inline int kdb_unregister(char *cmd) { return 0; }
 #endif	/* CONFIG_KGDB_KDB */
 enum {

include/linux/mm.h

···
 #if VM_GROWSUP
 extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);
 #else
-  #define expand_upwards(vma, address) do { } while (0)
+  #define expand_upwards(vma, address) (0)
 #endif
 
 /* Look up the first VMA which satisfies  addr < vm_end,  NULL if none. */

include/linux/mmc/sdhci.h

···
 #define SDHCI_SDR104_NEEDS_TUNING (1<<10)	/* SDR104/HS200 needs tuning */
 #define SDHCI_USING_RETUNING_TIMER (1<<11)	/* Host is using a retuning timer for the card */
 #define SDHCI_USE_64_BIT_DMA	(1<<12)	/* Use 64-bit DMA */
+#define SDHCI_HS400_TUNING	(1<<13)	/* Tuning for HS400 */
 
 	unsigned int version;	/* SDHCI spec. version */
 

include/linux/perf_event.h

···
 	struct perf_branch_entry	entries[0];
 };
 
-struct perf_regs {
-	__u64		abi;
-	struct pt_regs	*regs;
-};
-
 struct task_struct;
 
 /*
···
 		u32	reserved;
 	}				cpu_entry;
 	struct perf_callchain_entry	*callchain;
+
+	/*
+	 * regs_user may point to task_pt_regs or to regs_user_copy, depending
+	 * on arch details.
+	 */
 	struct perf_regs		regs_user;
+	struct pt_regs			regs_user_copy;
+
 	struct perf_regs		regs_intr;
 	u64				stack_user_size;
 } ____cacheline_aligned;

include/linux/perf_regs.h

···
 #ifndef _LINUX_PERF_REGS_H
 #define _LINUX_PERF_REGS_H
 
+struct perf_regs {
+	__u64		abi;
+	struct pt_regs	*regs;
+};
+
 #ifdef CONFIG_HAVE_PERF_REGS
 #include <asm/perf_regs.h>
 u64 perf_reg_value(struct pt_regs *regs, int idx);
 int perf_reg_validate(u64 mask);
 u64 perf_reg_abi(struct task_struct *task);
+void perf_get_regs_user(struct perf_regs *regs_user,
+			struct pt_regs *regs,
+			struct pt_regs *regs_user_copy);
 #else
 static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
 {
···
 static inline u64 perf_reg_abi(struct task_struct *task)
 {
 	return PERF_SAMPLE_REGS_ABI_NONE;
+}
+
+static inline void perf_get_regs_user(struct perf_regs *regs_user,
+				      struct pt_regs *regs,
+				      struct pt_regs *regs_user_copy)
+{
+	regs_user->regs = task_pt_regs(current);
+	regs_user->abi = perf_reg_abi(current);
 }
 #endif /* CONFIG_HAVE_PERF_REGS */
 #endif /* _LINUX_PERF_REGS_H */

include/linux/quota.h

···
 
 struct path;
 
+/* Structure for communicating via ->get_dqblk() & ->set_dqblk() */
+struct qc_dqblk {
+	int d_fieldmask;	/* mask of fields to change in ->set_dqblk() */
+	u64 d_spc_hardlimit;	/* absolute limit on used space */
+	u64 d_spc_softlimit;	/* preferred limit on used space */
+	u64 d_ino_hardlimit;	/* maximum # allocated inodes */
+	u64 d_ino_softlimit;	/* preferred inode limit */
+	u64 d_space;		/* Space owned by the user */
+	u64 d_ino_count;	/* # inodes owned by the user */
+	s64 d_ino_timer;	/* zero if within inode limits */
+				/* if not, we refuse service */
+	s64 d_spc_timer;	/* similar to above; for space */
+	int d_ino_warns;	/* # warnings issued wrt num inodes */
+	int d_spc_warns;	/* # warnings issued wrt used space */
+	u64 d_rt_spc_hardlimit;	/* absolute limit on realtime space */
+	u64 d_rt_spc_softlimit;	/* preferred limit on RT space */
+	u64 d_rt_space;		/* realtime space owned */
+	s64 d_rt_spc_timer;	/* similar to above; for RT space */
+	int d_rt_spc_warns;	/* # warnings issued wrt RT space */
+};
+
+/* Field specifiers for ->set_dqblk() in struct qc_dqblk */
+#define	QC_INO_SOFT	(1<<0)
+#define	QC_INO_HARD	(1<<1)
+#define	QC_SPC_SOFT	(1<<2)
+#define	QC_SPC_HARD	(1<<3)
+#define	QC_RT_SPC_SOFT	(1<<4)
+#define	QC_RT_SPC_HARD	(1<<5)
+#define QC_LIMIT_MASK (QC_INO_SOFT | QC_INO_HARD | QC_SPC_SOFT | QC_SPC_HARD | \
+		       QC_RT_SPC_SOFT | QC_RT_SPC_HARD)
+#define	QC_SPC_TIMER	(1<<6)
+#define	QC_INO_TIMER	(1<<7)
+#define	QC_RT_SPC_TIMER	(1<<8)
+#define QC_TIMER_MASK (QC_SPC_TIMER | QC_INO_TIMER | QC_RT_SPC_TIMER)
+#define	QC_SPC_WARNS	(1<<9)
+#define	QC_INO_WARNS	(1<<10)
+#define	QC_RT_SPC_WARNS	(1<<11)
+#define QC_WARNS_MASK (QC_SPC_WARNS | QC_INO_WARNS | QC_RT_SPC_WARNS)
+#define	QC_SPACE	(1<<12)
+#define	QC_INO_COUNT	(1<<13)
+#define	QC_RT_SPACE	(1<<14)
+#define QC_ACCT_MASK (QC_SPACE | QC_INO_COUNT | QC_RT_SPACE)
+
 /* Operations handling requests from userspace */
 struct quotactl_ops {
 	int (*quota_on)(struct super_block *, int, int, struct path *);
···
 	int (*quota_sync)(struct super_block *, int);
 	int (*get_info)(struct super_block *, int, struct if_dqinfo *);
 	int (*set_info)(struct super_block *, int, struct if_dqinfo *);
-	int (*get_dqblk)(struct super_block *, struct kqid, struct fs_disk_quota *);
-	int (*set_dqblk)(struct super_block *, struct kqid, struct fs_disk_quota *);
+	int (*get_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
+	int (*set_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
 	int (*get_xstate)(struct super_block *, struct fs_quota_stat *);
 	int (*set_xstate)(struct super_block *, unsigned int, int);
 	int (*get_xstatev)(struct super_block *, struct fs_quota_statv *);

include/linux/quotaops.h

···
 int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
 int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
 int dquot_get_dqblk(struct super_block *sb, struct kqid id,
-		struct fs_disk_quota *di);
+		struct qc_dqblk *di);
 int dquot_set_dqblk(struct super_block *sb, struct kqid id,
-		struct fs_disk_quota *di);
+		struct qc_dqblk *di);
 
 int __dquot_transfer(struct inode *inode, struct dquot **transfer_to);
 int dquot_transfer(struct inode *inode, struct iattr *iattr);

include/linux/rmap.h

···
 	atomic_t refcount;
 
 	/*
+	 * Count of child anon_vmas and VMAs which points to this anon_vma.
+	 *
+	 * This counter is used for making decision about reusing anon_vma
+	 * instead of forking new one. See comments in function anon_vma_clone.
+	 */
+	unsigned degree;
+
+	struct anon_vma *parent;	/* Parent of this anon_vma */
+
+	/*
 	 * NOTE: the LSB of the rb_root.rb_node is set by
 	 * mm_take_all_locks() _after_ taking the above lock. So the
 	 * rb_root must only be read/written after taking the above lock

include/linux/writeback.h

···
 		      struct writeback_control *wbc, writepage_t writepage,
 		      void *data);
 int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
-void set_page_dirty_balance(struct page *page);
 void writeback_set_ratelimit(void);
 void tag_pages_for_writeback(struct address_space *mapping,
 			     pgoff_t start, pgoff_t end);

include/net/mac80211.h

···
  *
  * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
  *	driver to indicate that it requires IV generation for this
- *	particular key. Setting this flag does not necessarily mean that SKBs
- *	will have sufficient tailroom for ICV or MIC.
+ *	particular key.
  * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
  *	the driver for a TKIP key if it requires Michael MIC
  *	generation in software.
···
  * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
  *	if space should be prepared for the IV, but the IV
  *	itself should not be generated. Do not set together with
- *	@IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does
- *	not necessarily mean that SKBs will have sufficient tailroom for ICV or
- *	MIC.
+ *	@IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
  * @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received
  *	management frames. The flag can help drivers that have a hardware
  *	crypto implementation that doesn't deal with management frames

include/target/target_core_backend.h

···
 int	se_dev_set_emulate_rest_reord(struct se_device *dev, int);
 int	se_dev_set_queue_depth(struct se_device *, u32);
 int	se_dev_set_max_sectors(struct se_device *, u32);
-int	se_dev_set_fabric_max_sectors(struct se_device *, u32);
 int	se_dev_set_optimal_sectors(struct se_device *, u32);
 int	se_dev_set_block_size(struct se_device *, u32);
 

include/target/target_core_backend_configfs.h

···
 	TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR);		\
 	DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors);			\
 	TB_DEV_ATTR_RO(_backend, hw_max_sectors);			\
-	DEF_TB_DEV_ATTRIB(_backend, fabric_max_sectors);		\
-	TB_DEV_ATTR(_backend, fabric_max_sectors, S_IRUGO | S_IWUSR);	\
 	DEF_TB_DEV_ATTRIB(_backend, optimal_sectors);			\
 	TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR);	\
 	DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth);			\

include/target/target_core_base.h

···
 #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT	0
 /* Default max_write_same_len, disabled by default */
 #define DA_MAX_WRITE_SAME_LEN			0
-/* Default max transfer length */
-#define DA_FABRIC_MAX_SECTORS			8192
 /* Use a model alias based on the configfs backend device name */
 #define DA_EMULATE_MODEL_ALIAS			0
 /* Emulation for Direct Page Out */
···
 	u32		hw_block_size;
 	u32		block_size;
 	u32		hw_max_sectors;
-	u32		fabric_max_sectors;
 	u32		optimal_sectors;
 	u32		hw_queue_depth;
 	u32		queue_depth;

include/uapi/asm-generic/fcntl.h

···
 
 /*
  * FMODE_EXEC is 0x20
- * FMODE_NONOTIFY is 0x1000000
+ * FMODE_NONOTIFY is 0x4000000
  * These cannot be used by userspace O_* until internal and external open
  * flags are split.
  * -Eric Paris

include/uapi/linux/kfd_ioctl.h

···
 	uint32_t pad;
 };
 
-#define KFD_IOC_MAGIC 'K'
+#define AMDKFD_IOCTL_BASE 'K'
+#define AMDKFD_IO(nr)			_IO(AMDKFD_IOCTL_BASE, nr)
+#define AMDKFD_IOR(nr, type)		_IOR(AMDKFD_IOCTL_BASE, nr, type)
+#define AMDKFD_IOW(nr, type)		_IOW(AMDKFD_IOCTL_BASE, nr, type)
+#define AMDKFD_IOWR(nr, type)		_IOWR(AMDKFD_IOCTL_BASE, nr, type)
 
-#define KFD_IOC_GET_VERSION \
-		_IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args)
+#define AMDKFD_IOC_GET_VERSION			\
+		AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args)
 
-#define KFD_IOC_CREATE_QUEUE \
-		_IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args)
+#define AMDKFD_IOC_CREATE_QUEUE			\
+		AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args)
 
-#define KFD_IOC_DESTROY_QUEUE \
-	_IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args)
+#define AMDKFD_IOC_DESTROY_QUEUE		\
+		AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args)
 
-#define KFD_IOC_SET_MEMORY_POLICY \
-	_IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args)
+#define AMDKFD_IOC_SET_MEMORY_POLICY		\
+		AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args)
 
-#define KFD_IOC_GET_CLOCK_COUNTERS \
-	_IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args)
+#define AMDKFD_IOC_GET_CLOCK_COUNTERS		\
+		AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args)
 
-#define KFD_IOC_GET_PROCESS_APERTURES \
-	_IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args)
+#define AMDKFD_IOC_GET_PROCESS_APERTURES	\
+		AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args)
 
-#define KFD_IOC_UPDATE_QUEUE \
-	_IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args)
+#define AMDKFD_IOC_UPDATE_QUEUE			\
+		AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args)
+
+#define AMDKFD_COMMAND_START		0x01
+#define AMDKFD_COMMAND_END		0x08
 
 #endif

include/xen/interface/nmi.h

···
+/******************************************************************************
+ * nmi.h
+ *
+ * NMI callback registration and reason codes.
+ *
+ * Copyright (c) 2005, Keir Fraser <[e-mail]>
+ */
+
+#ifndef __XEN_PUBLIC_NMI_H__
+#define __XEN_PUBLIC_NMI_H__
+
+#include <xen/interface/xen.h>
+
+/*
+ * NMI reason codes:
+ * Currently these are x86-specific, stored in arch_shared_info.nmi_reason.
+ */
+ /* I/O-check error reported via ISA port 0x61, bit 6. */
+#define _XEN_NMIREASON_io_error     0
+#define XEN_NMIREASON_io_error      (1UL << _XEN_NMIREASON_io_error)
+ /* PCI SERR reported via ISA port 0x61, bit 7. */
+#define _XEN_NMIREASON_pci_serr     1
+#define XEN_NMIREASON_pci_serr      (1UL << _XEN_NMIREASON_pci_serr)
+ /* Unknown hardware-generated NMI. */
+#define _XEN_NMIREASON_unknown      2
+#define XEN_NMIREASON_unknown       (1UL << _XEN_NMIREASON_unknown)
+
+/*
+ * long nmi_op(unsigned int cmd, void *arg)
+ * NB. All ops return zero on success, else a negative error code.
+ */
+
+/*
+ * Register NMI callback for this (calling) VCPU. Currently this only makes
+ * sense for domain 0, vcpu 0. All other callers will be returned EINVAL.
+ * arg == pointer to xennmi_callback structure.
+ */
+#define XENNMI_register_callback   0
+struct xennmi_callback {
+    unsigned long handler_address;
+    unsigned long pad;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xennmi_callback);
+
+/*
+ * Deregister NMI callback for this (calling) VCPU.
+ * arg == NULL.
+ */
+#define XENNMI_unregister_callback 1
+
+#endif /* __XEN_PUBLIC_NMI_H__ */

kernel/debug/debug_core.c

···
  * version 2. This program is licensed "as is" without any warranty of any
  * kind, whether express or implied.
  */
+
+#define pr_fmt(fmt) "KGDB: " fmt
+
 #include <linux/pid_namespace.h>
 #include <linux/clocksource.h>
 #include <linux/serial_core.h>
···
 		return err;
 	err = kgdb_arch_remove_breakpoint(&tmp);
 	if (err)
-		printk(KERN_ERR "KGDB: Critical breakpoint error, kernel "
-		   "memory destroyed at: %lx", addr);
+		pr_err("Critical breakpoint error, kernel memory destroyed at: %lx\n",
+		       addr);
 	return err;
 }
 
···
 		error = kgdb_arch_set_breakpoint(&kgdb_break[i]);
 		if (error) {
 			ret = error;
-			printk(KERN_INFO "KGDB: BP install failed: %lx",
-			       kgdb_break[i].bpt_addr);
+			pr_info("BP install failed: %lx\n",
+				kgdb_break[i].bpt_addr);
 			continue;
 		}
 
···
 			continue;
 		error = kgdb_arch_remove_breakpoint(&kgdb_break[i]);
 		if (error) {
-			printk(KERN_INFO "KGDB: BP remove failed: %lx\n",
-			       kgdb_break[i].bpt_addr);
+			pr_info("BP remove failed: %lx\n",
+				kgdb_break[i].bpt_addr);
 			ret = error;
 		}
 
···
 			goto setundefined;
 		error = kgdb_arch_remove_breakpoint(&kgdb_break[i]);
 		if (error)
-			printk(KERN_ERR "KGDB: breakpoint remove failed: %lx\n",
+			pr_err("breakpoint remove failed: %lx\n",
 			       kgdb_break[i].bpt_addr);
 setundefined:
 		kgdb_break[i].state = BP_UNDEFINED;
···
 	if (print_wait) {
 #ifdef CONFIG_KGDB_KDB
 		if (!dbg_kdb_mode)
-			printk(KERN_CRIT "KGDB: waiting... or $3#33 for KDB\n");
+			pr_crit("waiting... or $3#33 for KDB\n");
 #else
-		printk(KERN_CRIT "KGDB: Waiting for remote debugger\n");
+		pr_crit("Waiting for remote debugger\n");
 #endif
 	}
 	return 1;
···
 		exception_level = 0;
 		kgdb_skipexception(ks->ex_vector, ks->linux_regs);
 		dbg_activate_sw_breakpoints();
-		printk(KERN_CRIT "KGDB: re-enter error: breakpoint removed %lx\n",
-			addr);
+		pr_crit("re-enter error: breakpoint removed %lx\n", addr);
 		WARN_ON_ONCE(1);
 
 		return 1;
···
 		panic("Recursive entry to debugger");
 	}
 
-	printk(KERN_CRIT "KGDB: re-enter exception: ALL breakpoints killed\n");
+	pr_crit("re-enter exception: ALL breakpoints killed\n");
 #ifdef CONFIG_KGDB_KDB
 	/* Allow kdb to debug itself one level */
 	return 0;
···
 	int cpu;
 	int trace_on = 0;
 	int online_cpus = num_online_cpus();
+	u64 time_left;
 
 	kgdb_info[ks->cpu].enter_kgdb++;
 	kgdb_info[ks->cpu].exception_state |= exception_state;
···
 	/*
 	 * Wait for the other CPUs to be notified and be waiting for us:
 	 */
-	while (kgdb_do_roundup && (atomic_read(&masters_in_kgdb) +
-				atomic_read(&slaves_in_kgdb)) != online_cpus)
+	time_left = loops_per_jiffy * HZ;
+	while (kgdb_do_roundup && --time_left &&
+	       (atomic_read(&masters_in_kgdb) + atomic_read(&slaves_in_kgdb)) !=
+		   online_cpus)
 		cpu_relax();
+	if (!time_left)
+		pr_crit("KGDB: Timed out waiting for secondary CPUs.\n");
 
 	/*
 	 * At this point the primary processor is completely
···
 static void sysrq_handle_dbg(int key)
 {
 	if (!dbg_io_ops) {
-		printk(KERN_CRIT "ERROR: No KGDB I/O module available\n");
+		pr_crit("ERROR: No KGDB I/O module available\n");
 		return;
 	}
 	if (!kgdb_connected) {
 #ifdef CONFIG_KGDB_KDB
 		if (!dbg_kdb_mode)
-			printk(KERN_CRIT "KGDB or $3#33 for KDB\n");
+			pr_crit("KGDB or $3#33 for KDB\n");
 #else
-		printk(KERN_CRIT "Entering KGDB\n");
+		pr_crit("Entering KGDB\n");
 #endif
 	}
 
···
 {
 	kgdb_break_asap = 0;
 
-	printk(KERN_CRIT "kgdb: Waiting for connection from remote gdb...\n");
+	pr_crit("Waiting for connection from remote gdb...\n");
 	kgdb_breakpoint();
 }
 
···
 	if (dbg_io_ops) {
 		spin_unlock(&kgdb_registration_lock);
 
-		printk(KERN_ERR "kgdb: Another I/O driver is already "
-				"registered with KGDB.\n");
+		pr_err("Another I/O driver is already registered with KGDB\n");
 		return -EBUSY;
 	}
 
···
 
 	spin_unlock(&kgdb_registration_lock);
 
-	printk(KERN_INFO "kgdb: Registered I/O driver %s.\n",
-	       new_dbg_io_ops->name);
+	pr_info("Registered I/O driver %s\n", new_dbg_io_ops->name);
 
 	/* Arm KGDB now. */
 	kgdb_register_callbacks();
···
 
 	spin_unlock(&kgdb_registration_lock);
 
-	printk(KERN_INFO
-		"kgdb: Unregistered I/O driver %s, debugger disabled.\n",
+	pr_info("Unregistered I/O driver %s, debugger disabled\n",
 		old_dbg_io_ops->name);
 }
 EXPORT_SYMBOL_GPL(kgdb_unregister_io_module);

kernel/debug/kdb/kdb_bp.c

···
 	for (i = 0, bp = kdb_breakpoints; i < KDB_MAXBPT; i++, bp++)
 		bp->bp_free = 1;
 
-	kdb_register_repeat("bp", kdb_bp, "[<vaddr>]",
-		"Set/Display breakpoints", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("bl", kdb_bp, "[<vaddr>]",
-		"Display breakpoints", 0, KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("bp", kdb_bp, "[<vaddr>]",
+		"Set/Display breakpoints", 0,
+		KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("bl", kdb_bp, "[<vaddr>]",
+		"Display breakpoints", 0,
+		KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS);
 	if (arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT)
-		kdb_register_repeat("bph", kdb_bp, "[<vaddr>]",
-		"[datar [length]|dataw [length]]   Set hw brk", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("bc", kdb_bc, "<bpnum>",
-		"Clear Breakpoint", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("be", kdb_bc, "<bpnum>",
-		"Enable Breakpoint", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("bd", kdb_bc, "<bpnum>",
-		"Disable Breakpoint", 0, KDB_REPEAT_NONE);
+		kdb_register_flags("bph", kdb_bp, "[<vaddr>]",
+		"[datar [length]|dataw [length]]   Set hw brk", 0,
+		KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("bc", kdb_bc, "<bpnum>",
+		"Clear Breakpoint", 0,
+		KDB_ENABLE_FLOW_CTRL);
+	kdb_register_flags("be", kdb_bc, "<bpnum>",
+		"Enable Breakpoint", 0,
+		KDB_ENABLE_FLOW_CTRL);
+	kdb_register_flags("bd", kdb_bc, "<bpnum>",
+		"Disable Breakpoint", 0,
+		KDB_ENABLE_FLOW_CTRL);
 
-	kdb_register_repeat("ss", kdb_ss, "",
-		"Single Step", 1, KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("ss", kdb_ss, "",
+		"Single Step", 1,
+		KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS);
 	/*
 	 * Architecture dependent initialization.
 	 */

kernel/debug/kdb/kdb_debugger.c

···
 		ks->pass_exception = 1;
 		KDB_FLAG_SET(CATASTROPHIC);
 	}
+	/* set CATASTROPHIC if the system contains unresponsive processors */
+	for_each_online_cpu(i)
+		if (!kgdb_info[i].enter_kgdb)
+			KDB_FLAG_SET(CATASTROPHIC);
 	if (KDB_STATE(SSBPT) && reason == KDB_REASON_SSTEP) {
 		KDB_STATE_CLEAR(SSBPT);
 		KDB_STATE_CLEAR(DOING_SS);

kernel/debug/kdb/kdb_main.c

···
  */
 
 #include <linux/ctype.h>
+#include <linux/types.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/kmsg_dump.h>
···
 #include <linux/vmalloc.h>
 #include <linux/atomic.h>
 #include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
···
 #include <linux/uaccess.h>
 #include <linux/slab.h>
 #include "kdb_private.h"
+
+#undef	MODULE_PARAM_PREFIX
+#define	MODULE_PARAM_PREFIX "kdb."
+
+static int kdb_cmd_enabled = CONFIG_KDB_DEFAULT_ENABLE;
+module_param_named(cmd_enable, kdb_cmd_enabled, int, 0600);
 
 #define GREP_LEN 256
 char kdb_grep_string[GREP_LEN];
···
 	KDBMSG(BADLENGTH, "Invalid length field"),
 	KDBMSG(NOBP, "No Breakpoint exists"),
 	KDBMSG(BADADDR, "Invalid address"),
+	KDBMSG(NOPERM, "Permission denied"),
 };
 #undef KDBMSG
 
···
 		p = krp->p;
 #endif
 	return p;
+}
+
+/*
+ * Check whether the flags of the current command and the permissions
+ * of the kdb console has allow a command to be run.
+ */
+static inline bool kdb_check_flags(kdb_cmdflags_t flags, int permissions,
+				   bool no_args)
+{
+	/* permissions comes from userspace so needs massaging slightly */
+	permissions &= KDB_ENABLE_MASK;
+	permissions |= KDB_ENABLE_ALWAYS_SAFE;
+
+	/* some commands change group when launched with no arguments */
+	if (no_args)
+		permissions |= permissions << KDB_ENABLE_NO_ARGS_SHIFT;
+
+	flags |= KDB_ENABLE_ALL;
+
+	return permissions & flags;
 }
 
 /*
···
 	kdb_symtab_t symtab;
 
 	/*
+	 * If the enable flags prohibit both arbitrary memory access
+	 * and flow control then there are no reasonable grounds to
+	 * provide symbol lookup.
+	 */
+	if (!kdb_check_flags(KDB_ENABLE_MEM_READ | KDB_ENABLE_FLOW_CTRL,
+			     kdb_cmd_enabled, false))
+		return KDB_NOPERM;
+
+	/*
 	 * Process arguments which follow the following syntax:
 	 *
 	 *  symbol | numeric-address [+/- numeric-offset]
···
 		if (!s->count)
 			s->usable = 0;
 		if (s->usable)
-			kdb_register(s->name, kdb_exec_defcmd,
-				     s->usage, s->help, 0);
+			/* macros are always safe because when executed each
+			 * internal command re-enters kdb_parse() and is
+			 * safety checked individually.
+			 */
+			kdb_register_flags(s->name, kdb_exec_defcmd, s->usage,
+					   s->help, 0,
+					   KDB_ENABLE_ALWAYS_SAFE);
 		return 0;
 	}
 	if (!s->usable)
···
 
 	if (i < kdb_max_commands) {
 		int result;
+
+		if (!kdb_check_flags(tp->cmd_flags, kdb_cmd_enabled, argc <= 1))
+			return KDB_NOPERM;
+
 		KDB_STATE_SET(CMD);
 		result = (*tp->cmd_func)(argc-1, (const char **)argv);
 		if (result && ignore_errors && result > KDB_CMD_GO)
 			result = 0;
 		KDB_STATE_CLEAR(CMD);
-		switch (tp->cmd_repeat) {
-		case KDB_REPEAT_NONE:
-			argc = 0;
-			if (argv[0])
-				*(argv[0]) = '\0';
-			break;
-		case KDB_REPEAT_NO_ARGS:
-			argc = 1;
-			if (argv[1])
-				*(argv[1]) = '\0';
-			break;
-		case KDB_REPEAT_WITH_ARGS:
-			break;
-		}
+
+		if (tp->cmd_flags & KDB_REPEAT_WITH_ARGS)
+			return result;
+
+		argc = tp->cmd_flags & KDB_REPEAT_NO_ARGS ? 1 : 0;
+		if (argv[argc])
+			*(argv[argc]) = '\0';
 		return result;
 	}
 
···
  */
 static int kdb_sr(int argc, const char **argv)
 {
+	bool check_mask =
+	    !kdb_check_flags(KDB_ENABLE_ALL, kdb_cmd_enabled, false);
+
 	if (argc != 1)
 		return KDB_ARGCOUNT;
+
 	kdb_trap_printk++;
-	__handle_sysrq(*argv[1], false);
+	__handle_sysrq(*argv[1], check_mask);
 	kdb_trap_printk--;
 
 	return 0;
···
 	for (start_cpu = -1, i = 0; i < NR_CPUS; i++) {
 		if (!cpu_online(i)) {
 			state = 'F';	/* cpu is offline */
+		} else if (!kgdb_info[i].enter_kgdb) {
+			state = 'D';	/* cpu is online but unresponsive */
 		} else {
 			state = ' ';	/* cpu is responding to kdb */
 			if (kdb_task_state_char(KDB_TSK(i)) == 'I')
···
 	/*
 	 * Validate cpunum
 	 */
-	if ((cpunum > NR_CPUS) || !cpu_online(cpunum))
+	if ((cpunum > NR_CPUS) || !kgdb_info[cpunum].enter_kgdb)
 		return KDB_BADCPUNUM;
 
 	dbg_switch_cpu = cpunum;
···
 		if (KDB_FLAG(CMD_INTERRUPT))
 			return 0;
 		if (!kt->cmd_name)
+			continue;
+		if (!kdb_check_flags(kt->cmd_flags, kdb_cmd_enabled, true))
 			continue;
 		if (strlen(kt->cmd_usage) > 20)
 			space = "\n                                    ";
···
 }
 
 /*
- * kdb_register_repeat - This function is used to register a kernel
+ * kdb_register_flags - This function is used to register a kernel
  * 	debugger command.
  * Inputs:
  *	cmd	Command name
···
  *	zero for success, one if a duplicate command.
  */
 #define kdb_command_extend 50	/* arbitrary */
-int kdb_register_repeat(char *cmd,
-			kdb_func_t func,
-			char *usage,
-			char *help,
-			short minlen,
-			kdb_repeat_t repeat)
+int kdb_register_flags(char *cmd,
+		       kdb_func_t func,
+		       char *usage,
+		       char *help,
+		       short minlen,
+		       kdb_cmdflags_t flags)
 {
 	int i;
 	kdbtab_t *kp;
···
 	kp->cmd_func   = func;
 	kp->cmd_usage  = usage;
 	kp->cmd_help   = help;
-	kp->cmd_flags  = 0;
 	kp->cmd_minlen = minlen;
-	kp->cmd_repeat = repeat;
+	kp->cmd_flags  = flags;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(kdb_register_repeat);
+EXPORT_SYMBOL_GPL(kdb_register_flags);
 
 
 /*
  * kdb_register - Compatibility register function for commands that do
  *	not need to specify a repeat state.  Equivalent to
- *	kdb_register_repeat with KDB_REPEAT_NONE.
+ *	kdb_register_flags with flags set to 0.
  * Inputs:
  *	cmd	Command name
  *	func	Function to execute the command
···
 	     char *help,
 	     short minlen)
 {
-	return kdb_register_repeat(cmd, func, usage, help, minlen,
-				   KDB_REPEAT_NONE);
+	return kdb_register_flags(cmd, func, usage, help, minlen, 0);
 }
 EXPORT_SYMBOL_GPL(kdb_register);
 
···
 	for_each_kdbcmd(kp, i)
 		kp->cmd_name = NULL;
 
-	kdb_register_repeat("md", kdb_md, "<vaddr>",
+	kdb_register_flags("md", kdb_md, "<vaddr>",
 	  "Display Memory Contents, also mdWcN, e.g. md8c1", 1,
-			    KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("mdr", kdb_md, "<vaddr> <bytes>",
-	  "Display Raw Memory", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("mdp", kdb_md, "<paddr> <bytes>",
-	  "Display Physical Memory", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("mds", kdb_md, "<vaddr>",
-	  "Display Memory Symbolically", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("mm", kdb_mm, "<vaddr> <contents>",
-	  "Modify Memory Contents", 0, KDB_REPEAT_NO_ARGS);
-	kdb_register_repeat("go", kdb_go, "[<vaddr>]",
-	  "Continue Execution", 1, KDB_REPEAT_NONE);
-	kdb_register_repeat("rd", kdb_rd, "",
-	  "Display Registers", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("rm", kdb_rm, "<reg> <contents>",
-	  "Modify Registers", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("ef", kdb_ef, "<vaddr>",
-	  "Display exception frame", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("bt", kdb_bt, "[<vaddr>]",
-	  "Stack traceback", 1, KDB_REPEAT_NONE);
-	kdb_register_repeat("btp", kdb_bt, "<pid>",
-	  "Display stack for process <pid>", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("bta", kdb_bt, "[D|R|S|T|C|Z|E|U|I|M|A]",
-	  "Backtrace all processes matching state flag", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("btc", kdb_bt, "",
-	  "Backtrace current process on each cpu", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("btt", kdb_bt, "<vaddr>",
+	  KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("mdr", kdb_md, "<vaddr> <bytes>",
+	  "Display Raw Memory", 0,
+	  KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("mdp", kdb_md, "<paddr> <bytes>",
+	  "Display Physical Memory", 0,
+	  KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("mds", kdb_md, "<vaddr>",
+	  "Display Memory Symbolically", 0,
+	  KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("mm", kdb_mm, "<vaddr> <contents>",
+	  "Modify Memory Contents", 0,
+	  KDB_ENABLE_MEM_WRITE | KDB_REPEAT_NO_ARGS);
+	kdb_register_flags("go", kdb_go, "[<vaddr>]",
+	  "Continue Execution", 1,
+	  KDB_ENABLE_REG_WRITE | KDB_ENABLE_ALWAYS_SAFE_NO_ARGS);
+	kdb_register_flags("rd", kdb_rd, "",
+	  "Display Registers", 0,
+	  KDB_ENABLE_REG_READ);
+	kdb_register_flags("rm", kdb_rm, "<reg> <contents>",
+	  "Modify Registers", 0,
+	  KDB_ENABLE_REG_WRITE);
+	kdb_register_flags("ef", kdb_ef, "<vaddr>",
+	  "Display exception frame", 0,
+	  KDB_ENABLE_MEM_READ);
+	kdb_register_flags("bt", kdb_bt, "[<vaddr>]",
+	  "Stack traceback", 1,
+	  KDB_ENABLE_MEM_READ | KDB_ENABLE_INSPECT_NO_ARGS);
+	kdb_register_flags("btp", kdb_bt, "<pid>",
+	  "Display stack for process <pid>", 0,
+	  KDB_ENABLE_INSPECT);
+	kdb_register_flags("bta", kdb_bt, "[D|R|S|T|C|Z|E|U|I|M|A]",
+	  "Backtrace all processes matching state flag", 0,
+	  KDB_ENABLE_INSPECT);
+	kdb_register_flags("btc", kdb_bt, "",
+	  "Backtrace current process on each cpu", 0,
+	  KDB_ENABLE_INSPECT);
+	kdb_register_flags("btt", kdb_bt, "<vaddr>",
 	  "Backtrace process given its struct task address", 0,
-			    KDB_REPEAT_NONE);
-	kdb_register_repeat("env", kdb_env, "",
-	  "Show environment variables", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("set", kdb_set, "",
-	  "Set environment variables", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("help", kdb_help, "",
-	  "Display Help Message", 1, KDB_REPEAT_NONE);
-	kdb_register_repeat("?", kdb_help, "",
-	  "Display Help Message", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("cpu", kdb_cpu, "<cpunum>",
-	  "Switch to new cpu", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("kgdb", kdb_kgdb, "",
-	  "Enter kgdb mode", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("ps", kdb_ps, "[<flags>|A]",
-	  "Display active task list", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("pid", kdb_pid, "<pidnum>",
-	  "Switch to another task", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("reboot", kdb_reboot, "",
-	  "Reboot the machine immediately", 0, KDB_REPEAT_NONE);
+	  KDB_ENABLE_MEM_READ | KDB_ENABLE_INSPECT_NO_ARGS);
+	kdb_register_flags("env", kdb_env, "",
+	  "Show environment variables", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("set", kdb_set, "",
+	  "Set environment variables", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("help", kdb_help, "",
+	  "Display Help Message", 1,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("?", kdb_help, "",
+	  "Display Help Message", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("cpu", kdb_cpu, "<cpunum>",
+	  "Switch to new cpu", 0,
+	  KDB_ENABLE_ALWAYS_SAFE_NO_ARGS);
+	kdb_register_flags("kgdb", kdb_kgdb, "",
+	  "Enter kgdb mode", 0, 0);
+	kdb_register_flags("ps", kdb_ps, "[<flags>|A]",
+	  "Display active task list", 0,
+	  KDB_ENABLE_INSPECT);
+	kdb_register_flags("pid", kdb_pid, "<pidnum>",
+	  "Switch to another task", 0,
+	  KDB_ENABLE_INSPECT);
+	kdb_register_flags("reboot", kdb_reboot, "",
+	  "Reboot the machine immediately", 0,
+	  KDB_ENABLE_REBOOT);
 #if defined(CONFIG_MODULES)
-	kdb_register_repeat("lsmod", kdb_lsmod, "",
-	  "List loaded kernel modules", 0, KDB_REPEAT_NONE);
+	kdb_register_flags("lsmod", kdb_lsmod, "",
+	  "List loaded kernel modules", 0,
+	  KDB_ENABLE_INSPECT);
 #endif
 #if defined(CONFIG_MAGIC_SYSRQ)
-	kdb_register_repeat("sr", kdb_sr, "<key>",
-	  "Magic SysRq key", 0, KDB_REPEAT_NONE);
+	kdb_register_flags("sr", kdb_sr, "<key>",
+	  "Magic SysRq key", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
 #endif
 #if defined(CONFIG_PRINTK)
-	kdb_register_repeat("dmesg", kdb_dmesg, "[lines]",
-	  "Display syslog buffer", 0, KDB_REPEAT_NONE);
+	kdb_register_flags("dmesg", kdb_dmesg, "[lines]",
+	  "Display syslog buffer", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
 #endif
 	if (arch_kgdb_ops.enable_nmi) {
-		kdb_register_repeat("disable_nmi", kdb_disable_nmi, "",
-		  "Disable NMI entry to KDB", 0, KDB_REPEAT_NONE);
+		kdb_register_flags("disable_nmi", kdb_disable_nmi, "",
+		  "Disable NMI entry to KDB", 0,
+		  KDB_ENABLE_ALWAYS_SAFE);
 	}
-	kdb_register_repeat("defcmd", kdb_defcmd, "name \"usage\" \"help\"",
-	  "Define a set of commands, down to endefcmd", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("kill", kdb_kill, "<-signal> <pid>",
-	  "Send a signal to a process", 0, KDB_REPEAT_NONE);
-	kdb_register_repeat("summary", kdb_summary, "",
-	  "Summarize the system", 4, KDB_REPEAT_NONE);
-	kdb_register_repeat("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]",
-	  "Display per_cpu variables", 3, KDB_REPEAT_NONE);
-	kdb_register_repeat("grephelp", kdb_grep_help, "",
-	  "Display help on | grep", 0, KDB_REPEAT_NONE);
+	kdb_register_flags("defcmd", kdb_defcmd, "name \"usage\" \"help\"",
+	  "Define a set of commands, down to endefcmd", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("kill", kdb_kill, "<-signal> <pid>",
+	  "Send a signal to a process", 0,
+	  KDB_ENABLE_SIGNAL);
+	kdb_register_flags("summary", kdb_summary, "",
+	  "Summarize the system", 4,
+	  KDB_ENABLE_ALWAYS_SAFE);
+	kdb_register_flags("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]",
+	  "Display per_cpu variables", 3,
+	  KDB_ENABLE_MEM_READ);
+	kdb_register_flags("grephelp", kdb_grep_help, "",
+	  "Display help on | grep", 0,
+	  KDB_ENABLE_ALWAYS_SAFE);
 }
 
 /* Execute any commands defined in kdb_cmds.  */

kernel/debug/kdb/kdb_private.h

···
 	kdb_func_t cmd_func;		/* Function to execute command */
 	char    *cmd_usage;		/* Usage String for this command */
 	char    *cmd_help;		/* Help message for this command */
-	short    cmd_flags;		/* Parsing flags */
 	short    cmd_minlen;		/* Minimum legal # command
 					 * chars required */
-	kdb_repeat_t cmd_repeat;	/* Does command auto repeat on enter? */
+	kdb_cmdflags_t cmd_flags;	/* Command behaviour flags */
 } kdbtab_t;
 
 extern int kdb_bt(int, const char **);	/* KDB display back trace */

kernel/events/core.c

···
 }
 
 static void perf_sample_regs_user(struct perf_regs *regs_user,
-				  struct pt_regs *regs)
+				  struct pt_regs *regs,
+				  struct pt_regs *regs_user_copy)
 {
-	if (!user_mode(regs)) {
-		if (current->mm)
-			regs = task_pt_regs(current);
-		else
-			regs = NULL;
-	}
-
-	if (regs) {
-		regs_user->abi  = perf_reg_abi(current);
+	if (user_mode(regs)) {
+		regs_user->abi = perf_reg_abi(current);
 		regs_user->regs = regs;
+	} else if (current->mm) {
+		perf_get_regs_user(regs_user, regs, regs_user_copy);
 	} else {
 		regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;
 		regs_user->regs = NULL;
···
 	}
 
 	if (sample_type & (PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER))
-		perf_sample_regs_user(&data->regs_user, regs);
+		perf_sample_regs_user(&data->regs_user, regs,
+				      &data->regs_user_copy);
 
 	if (sample_type & PERF_SAMPLE_REGS_USER) {
 		/* regs dump ABI info */

kernel/exit.c

···
 static int wait_consider_task(struct wait_opts *wo, int ptrace,
 				struct task_struct *p)
 {
+	/*
+	 * We can race with wait_task_zombie() from another thread.
+	 * Ensure that EXIT_ZOMBIE -> EXIT_DEAD/EXIT_TRACE transition
+	 * can't confuse the checks below.
+	 */
+	int exit_state = ACCESS_ONCE(p->exit_state);
 	int ret;
 
-	if (unlikely(p->exit_state == EXIT_DEAD))
+	if (unlikely(exit_state == EXIT_DEAD))
 		return 0;
 
 	ret = eligible_child(wo, p);
···
 		return 0;
 	}
 
-	if (unlikely(p->exit_state == EXIT_TRACE)) {
+	if (unlikely(exit_state == EXIT_TRACE)) {
 		/*
 		 * ptrace == 0 means we are the natural parent. In this case
 		 * we should clear notask_error, debugger will notify us.
···
 	}
 
 	/* slay zombie? */
-	if (p->exit_state == EXIT_ZOMBIE) {
+	if (exit_state == EXIT_ZOMBIE) {
 		/* we don't reap group leaders with subthreads */
 		if (!delay_group_leader(p)) {
 			/*

kernel/locking/mutex-debug.c

···
 			DEBUG_LOCKS_WARN_ON(lock->owner != current);
 
 		DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
-		mutex_clear_owner(lock);
 	}
 
 	/*
 	 * __mutex_slowpath_needs_to_unlock() is explicitly 0 for debug
 	 * mutexes so that we can do it here after we've verified state.
 	 */
+	mutex_clear_owner(lock);
 	atomic_set(&lock->count, 1);
 }
 

kernel/sched/core.c

···
 #ifdef CONFIG_RT_GROUP_SCHED
 	alloc_size += 2 * nr_cpu_ids * sizeof(void **);
 #endif
-#ifdef CONFIG_CPUMASK_OFFSTACK
-	alloc_size += num_possible_cpus() * cpumask_size();
-#endif
 	if (alloc_size) {
 		ptr = (unsigned long)kzalloc(alloc_size, GFP_NOWAIT);
 
···
 		ptr += nr_cpu_ids * sizeof(void **);
 
 #endif /* CONFIG_RT_GROUP_SCHED */
-#ifdef CONFIG_CPUMASK_OFFSTACK
-		for_each_possible_cpu(i) {
-			per_cpu(load_balance_mask, i) = (void *)ptr;
-			ptr += cpumask_size();
-		}
-#endif /* CONFIG_CPUMASK_OFFSTACK */
 	}
+#ifdef CONFIG_CPUMASK_OFFSTACK
+	for_each_possible_cpu(i) {
+		per_cpu(load_balance_mask, i) = (cpumask_var_t)kzalloc_node(
+			cpumask_size(), GFP_KERNEL, cpu_to_node(i));
+	}
+#endif /* CONFIG_CPUMASK_OFFSTACK */
 
 	init_rt_bandwidth(&def_rt_bandwidth,
 			global_rt_period(), global_rt_runtime());

kernel/sched/deadline.c

···
 static
 int dl_runtime_exceeded(struct rq *rq, struct sched_dl_entity *dl_se)
 {
-	int dmiss = dl_time_before(dl_se->deadline, rq_clock(rq));
-	int rorun = dl_se->runtime <= 0;
-
-	if (!rorun && !dmiss)
-		return 0;
-
-	/*
-	 * If we are beyond our current deadline and we are still
-	 * executing, then we have already used some of the runtime of
-	 * the next instance. Thus, if we do not account that, we are
-	 * stealing bandwidth from the system at each deadline miss!
-	 */
-	if (dmiss) {
-		dl_se->runtime = rorun ? dl_se->runtime : 0;
-		dl_se->runtime -= rq_clock(rq) - dl_se->deadline;
-	}
-
-	return 1;
+	return (dl_se->runtime <= 0);
 }
 
 extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq);
···
 	 * parameters of the task might need updating. Otherwise,
 	 * we want a replenishment of its runtime.
 	 */
-	if (!dl_se->dl_new && flags & ENQUEUE_REPLENISH)
-		replenish_dl_entity(dl_se, pi_se);
-	else
+	if (dl_se->dl_new || flags & ENQUEUE_WAKEUP)
 		update_dl_entity(dl_se, pi_se);
+	else if (flags & ENQUEUE_REPLENISH)
+		replenish_dl_entity(dl_se, pi_se);
 
 	__enqueue_dl_entity(dl_se);
 }

kernel/sched/fair.c

···
 
 static void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b)
 {
+	/* init_cfs_bandwidth() was not called */
+	if (!cfs_b->throttled_cfs_rq.next)
+		return;
+
 	hrtimer_cancel(&cfs_b->period_timer);
 	hrtimer_cancel(&cfs_b->slack_timer);
 }
···
 		 * wl = S * s'_i; see (2)
 		 */
 		if (W > 0 && w < W)
-			wl = (w * tg->shares) / W;
+			wl = (w * (long)tg->shares) / W;
 		else
 			wl = tg->shares;
 

kernel/trace/trace_kdb.c

···
 
 static __init int kdb_ftrace_register(void)
 {
-	kdb_register_repeat("ftdump", kdb_ftdump, "[skip_#lines] [cpu]",
-			    "Dump ftrace log", 0, KDB_REPEAT_NONE);
+	kdb_register_flags("ftdump", kdb_ftdump, "[skip_#lines] [cpu]",
+			    "Dump ftrace log", 0, KDB_ENABLE_ALWAYS_SAFE);
 	return 0;
 }
 

lib/Kconfig.kgdb

···
 	help
 	  KDB frontend for kernel
 
+config KDB_DEFAULT_ENABLE
+	hex "KDB: Select kdb command functions to be enabled by default"
+	depends on KGDB_KDB
+	default 0x1
+	help
+	  Specifiers which kdb commands are enabled by default. This may
+	  be set to 1 or 0 to enable all commands or disable almost all
+	  commands.
+
+	  Alternatively the following bitmask applies:
+
+	    0x0002 - allow arbitrary reads from memory and symbol lookup
+	    0x0004 - allow arbitrary writes to memory
+	    0x0008 - allow current register state to be inspected
+	    0x0010 - allow current register state to be modified
+	    0x0020 - allow passive inspection (backtrace, process list, lsmod)
+	    0x0040 - allow flow control management (breakpoint, single step)
+	    0x0080 - enable signalling of processes
+	    0x0100 - allow machine to be rebooted
+
+	  The config option merely sets the default at boot time. Both
+	  issuing 'echo X > /sys/module/kdb/parameters/cmd_enable' or
+          setting with kdb.cmd_enable=X kernel command line option will
+	  override the default settings.
+
 config KDB_KEYBOARD
 	bool "KGDB_KDB: keyboard as input device"
 	depends on VT && KGDB_KDB

lib/assoc_array.c

···
  * 2 of the Licence, or (at your option) any later version.
  */
 //#define DEBUG
+#include <linux/rcupdate.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/assoc_array_priv.h>

mm/Kconfig.debug

···
 	depends on !KMEMCHECK
 	select PAGE_EXTENSION
 	select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
-	select PAGE_GUARD if ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	---help---
 	  Unmap pages from the kernel linear mapping after free_pages().
 	  This results in a large slowdown, but helps to find certain types
···
 	  that would result in incorrect warnings of memory corruption after
 	  a resume because free pages are not saved to the suspend image.
 
-config WANT_PAGE_DEBUG_FLAGS
-	bool
-
 config PAGE_POISONING
 	bool
-	select WANT_PAGE_DEBUG_FLAGS
-
-config PAGE_GUARD
-	bool
-	select WANT_PAGE_DEBUG_FLAGS

mm/memcontrol.c

···
 	if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) {
 		mem_cgroup_swap_statistics(from, false);
 		mem_cgroup_swap_statistics(to, true);
-		/*
-		 * This function is only called from task migration context now.
-		 * It postpones page_counter and refcount handling till the end
-		 * of task migration(mem_cgroup_clear_mc()) for performance
-		 * improvement. But we cannot postpone css_get(to)  because if
-		 * the process that has been moved to @to does swap-in, the
-		 * refcount of @to might be decreased to 0.
-		 *
-		 * We are in attach() phase, so the cgroup is guaranteed to be
-		 * alive, so we can just call css_get().
-		 */
-		css_get(&to->css);
 		return 0;
 	}
 	return -EINVAL;
···
 	if (parent_css == NULL) {
 		root_mem_cgroup = memcg;
 		page_counter_init(&memcg->memory, NULL);
+		memcg->soft_limit = PAGE_COUNTER_MAX;
 		page_counter_init(&memcg->memsw, NULL);
 		page_counter_init(&memcg->kmem, NULL);
 	}
···
 
 	if (parent->use_hierarchy) {
 		page_counter_init(&memcg->memory, &parent->memory);
+		memcg->soft_limit = PAGE_COUNTER_MAX;
 		page_counter_init(&memcg->memsw, &parent->memsw);
 		page_counter_init(&memcg->kmem, &parent->kmem);
 
···
 		 */
 	} else {
 		page_counter_init(&memcg->memory, NULL);
+		memcg->soft_limit = PAGE_COUNTER_MAX;
 		page_counter_init(&memcg->memsw, NULL);
 		page_counter_init(&memcg->kmem, NULL);
 		/*
···
 	mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX);
 	mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX);
 	memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX);
-	memcg->soft_limit = 0;
+	memcg->soft_limit = PAGE_COUNTER_MAX;
 }
 
 #ifdef CONFIG_MMU

mm/memory.c

···
 
 static void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb)
 {
+	if (!tlb->end)
+		return;
+
 	tlb_flush(tlb);
 	mmu_notifier_invalidate_range(tlb->mm, tlb->start, tlb->end);
 #ifdef CONFIG_HAVE_RCU_TABLE_FREE
···
 {
 	struct mmu_gather_batch *batch;
 
-	for (batch = &tlb->local; batch; batch = batch->next) {
+	for (batch = &tlb->local; batch && batch->nr; batch = batch->next) {
 		free_pages_and_swap_cache(batch->pages, batch->nr);
 		batch->nr = 0;
 	}
···
 
 void tlb_flush_mmu(struct mmu_gather *tlb)
 {
-	if (!tlb->end)
-		return;
-
 	tlb_flush_mmu_tlbonly(tlb);
 	tlb_flush_mmu_free(tlb);
 }
···
 		if (!dirty_page)
 			return ret;
 
-		/*
-		 * Yes, Virginia, this is actually required to prevent a race
-		 * with clear_page_dirty_for_io() from clearing the page dirty
-		 * bit after it clear all dirty ptes, but before a racing
-		 * do_wp_page installs a dirty pte.
-		 *
-		 * do_shared_fault is protected similarly.
-		 */
 		if (!page_mkwrite) {
-			wait_on_page_locked(dirty_page);
-			set_page_dirty_balance(dirty_page);
+			struct address_space *mapping;
+			int dirtied;
+
+			lock_page(dirty_page);
+			dirtied = set_page_dirty(dirty_page);
+			VM_BUG_ON_PAGE(PageAnon(dirty_page), dirty_page);
+			mapping = dirty_page->mapping;
+			unlock_page(dirty_page);
+
+			if (dirtied && mapping) {
+				/*
+				 * Some device drivers do not set page.mapping
+				 * but still dirty their pages
+				 */
+				balance_dirty_pages_ratelimited(mapping);
+			}
+
 			/* file_update_time outside page_lock */
 			if (vma->vm_file)
 				file_update_time(vma->vm_file);
···
 		if (prev && prev->vm_end == address)
 			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
 
-		expand_downwards(vma, address - PAGE_SIZE);
+		return expand_downwards(vma, address - PAGE_SIZE);
 	}
 	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
 		struct vm_area_struct *next = vma->vm_next;
···
 		if (next && next->vm_start == address + PAGE_SIZE)
 			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
 
-		expand_upwards(vma, address + PAGE_SIZE);
+		return expand_upwards(vma, address + PAGE_SIZE);
 	}
 	return 0;
 }

mm/mmap.c

···
 		if (exporter && exporter->anon_vma && !importer->anon_vma) {
 			int error;
 
-			error = anon_vma_clone(importer, exporter);
-			if (error)
-				return error;
 			importer->anon_vma = exporter->anon_vma;
+			error = anon_vma_clone(importer, exporter);
+			if (error) {
+				importer->anon_vma = NULL;
+				return error;
+			}
 		}
 	}
 
···
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct rlimit *rlim = current->signal->rlim;
-	unsigned long new_start;
+	unsigned long new_start, actual_size;
 
 	/* address space limit tests */
 	if (!may_expand_vm(mm, grow))
 		return -ENOMEM;
 
 	/* Stack limit test */
-	if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
+	actual_size = size;
+	if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
+		actual_size -= PAGE_SIZE;
+	if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
 		return -ENOMEM;
 
 	/* mlock limit tests */

mm/page-writeback.c

···
 		bdi_start_background_writeback(bdi);
 }
 
-void set_page_dirty_balance(struct page *page)
-{
-	if (set_page_dirty(page)) {
-		struct address_space *mapping = page_mapping(page);
-
-		if (mapping)
-			balance_dirty_pages_ratelimited(mapping);
-	}
-}
-
 static DEFINE_PER_CPU(int, bdp_ratelimits);
 
 /*
···
  * page dirty in that case, but not all the buffers.  This is a "bottom-up"
  * dirtying, whereas __set_page_dirty_buffers() is a "top-down" dirtying.
  *
- * Most callers have locked the page, which pins the address_space in memory.
- * But zap_pte_range() does not lock the page, however in that case the
- * mapping is pinned by the vma's ->vm_file reference.
- *
- * We take care to handle the case where the page was truncated from the
- * mapping by re-checking page_mapping() inside tree_lock.
+ * The caller must ensure this doesn't race with truncation.  Most will simply
+ * hold the page lock, but e.g. zap_pte_range() calls with the page mapped and
+ * the pte lock held, which also locks out truncation.
  */
 int __set_page_dirty_nobuffers(struct page *page)
 {
 	if (!TestSetPageDirty(page)) {
 		struct address_space *mapping = page_mapping(page);
-		struct address_space *mapping2;
 		unsigned long flags;
 
 		if (!mapping)
 			return 1;
 
 		spin_lock_irqsave(&mapping->tree_lock, flags);
-		mapping2 = page_mapping(page);
-		if (mapping2) { /* Race with truncate? */
-			BUG_ON(mapping2 != mapping);
-			WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page));
-			account_page_dirtied(page, mapping);
-			radix_tree_tag_set(&mapping->page_tree,
-				page_index(page), PAGECACHE_TAG_DIRTY);
-		}
+		BUG_ON(page_mapping(page) != mapping);
+		WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page));
+		account_page_dirtied(page, mapping);
+		radix_tree_tag_set(&mapping->page_tree, page_index(page),
+				   PAGECACHE_TAG_DIRTY);
 		spin_unlock_irqrestore(&mapping->tree_lock, flags);
 		if (mapping->host) {
 			/* !PageAnon && !swapper_space */
···
 		/*
 		 * We carefully synchronise fault handlers against
 		 * installing a dirty pte and marking the page dirty
-		 * at this point. We do this by having them hold the
-		 * page lock at some point after installing their
-		 * pte, but before marking the page dirty.
-		 * Pages are always locked coming in here, so we get
-		 * the desired exclusion. See mm/memory.c:do_wp_page()
-		 * for more comments.
+		 * at this point.  We do this by having them hold the
+		 * page lock while dirtying the page, and pages are
+		 * always locked coming in here, so we get the desired
+		 * exclusion.
 		 */
 		if (TestClearPageDirty(page)) {
 			dec_zone_page_state(page, NR_FILE_DIRTY);

mm/rmap.c

···
 	anon_vma = kmem_cache_alloc(anon_vma_cachep, GFP_KERNEL);
 	if (anon_vma) {
 		atomic_set(&anon_vma->refcount, 1);
+		anon_vma->degree = 1;	/* Reference for first vma */
+		anon_vma->parent = anon_vma;
 		/*
 		 * Initialise the anon_vma root to point to itself. If called
 		 * from fork, the root will be reset to the parents anon_vma.
···
 		if (likely(!vma->anon_vma)) {
 			vma->anon_vma = anon_vma;
 			anon_vma_chain_link(vma, avc, anon_vma);
+			/* vma reference or self-parent link for new root */
+			anon_vma->degree++;
 			allocated = NULL;
 			avc = NULL;
 		}
···
 /*
  * Attach the anon_vmas from src to dst.
  * Returns 0 on success, -ENOMEM on failure.
+ *
+ * If dst->anon_vma is NULL this function tries to find and reuse existing
+ * anon_vma which has no vmas and only one child anon_vma. This prevents
+ * degradation of anon_vma hierarchy to endless linear chain in case of
+ * constantly forking task. On the other hand, an anon_vma with more than one
+ * child isn't reused even if there was no alive vma, thus rmap walker has a
+ * good chance of avoiding scanning the whole hierarchy when it searches where
+ * page is mapped.
  */
 int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
 {
···
 		anon_vma = pavc->anon_vma;
 		root = lock_anon_vma_root(root, anon_vma);
 		anon_vma_chain_link(dst, avc, anon_vma);
+
+		/*
+		 * Reuse existing anon_vma if its degree lower than two,
+		 * that means it has no vma and only one anon_vma child.
+		 *
+		 * Do not chose parent anon_vma, otherwise first child
+		 * will always reuse it. Root anon_vma is never reused:
+		 * it has self-parent reference and at least one child.
+		 */
+		if (!dst->anon_vma && anon_vma != src->anon_vma &&
+				anon_vma->degree < 2)
+			dst->anon_vma = anon_vma;
 	}
+	if (dst->anon_vma)
+		dst->anon_vma->degree++;
 	unlock_anon_vma_root(root);
 	return 0;
 
···
 	if (!pvma->anon_vma)
 		return 0;
 
+	/* Drop inherited anon_vma, we'll reuse existing or allocate new. */
+	vma->anon_vma = NULL;
+
 	/*
 	 * First, attach the new VMA to the parent VMA's anon_vmas,
 	 * so rmap can find non-COWed pages in child processes.
···
 	error = anon_vma_clone(vma, pvma);
 	if (error)
 		return error;
+
+	/* An existing anon_vma has been reused, all done then. */
+	if (vma->anon_vma)
+		return 0;
 
 	/* Then add our own anon_vma. */
 	anon_vma = anon_vma_alloc();
···
 	 * lock any of the anon_vmas in this anon_vma tree.
 	 */
 	anon_vma->root = pvma->anon_vma->root;
+	anon_vma->parent = pvma->anon_vma;
 	/*
 	 * With refcounts, an anon_vma can stay around longer than the
 	 * process it belongs to. The root anon_vma needs to be pinned until
···
 	vma->anon_vma = anon_vma;
 	anon_vma_lock_write(anon_vma);
 	anon_vma_chain_link(vma, avc, anon_vma);
+	anon_vma->parent->degree++;
 	anon_vma_unlock_write(anon_vma);
 
 	return 0;
···
 		 * Leave empty anon_vmas on the list - we'll need
 		 * to free them outside the lock.
 		 */
-		if (RB_EMPTY_ROOT(&anon_vma->rb_root))
+		if (RB_EMPTY_ROOT(&anon_vma->rb_root)) {
+			anon_vma->parent->degree--;
 			continue;
+		}
 
 		list_del(&avc->same_vma);
 		anon_vma_chain_free(avc);
 	}
+	if (vma->anon_vma)
+		vma->anon_vma->degree--;
 	unlock_anon_vma_root(root);
 
 	/*
···
 	list_for_each_entry_safe(avc, next, &vma->anon_vma_chain, same_vma) {
 		struct anon_vma *anon_vma = avc->anon_vma;
 
+		BUG_ON(anon_vma->degree);
 		put_anon_vma(anon_vma);
 
 		list_del(&avc->same_vma);

mm/vmscan.c

···
 		return false;
 
 	/*
-	 * There is a potential race between when kswapd checks its watermarks
-	 * and a process gets throttled. There is also a potential race if
-	 * processes get throttled, kswapd wakes, a large process exits therby
-	 * balancing the zones that causes kswapd to miss a wakeup. If kswapd
-	 * is going to sleep, no process should be sleeping on pfmemalloc_wait
-	 * so wake them now if necessary. If necessary, processes will wake
-	 * kswapd and get throttled again
+	 * The throttled processes are normally woken up in balance_pgdat() as
+	 * soon as pfmemalloc_watermark_ok() is true. But there is a potential
+	 * race between when kswapd checks the watermarks and a process gets
+	 * throttled. There is also a potential race if processes get
+	 * throttled, kswapd wakes, a large process exits thereby balancing the
+	 * zones, which causes kswapd to exit balance_pgdat() before reaching
+	 * the wake up checks. If kswapd is going to sleep, no process should
+	 * be sleeping on pfmemalloc_wait, so wake them now if necessary. If
+	 * the wake up is premature, processes will wake kswapd and get
+	 * throttled again. The difference from wake ups in balance_pgdat() is
+	 * that here we are under prepare_to_wait().
 	 */
-	if (waitqueue_active(&pgdat->pfmemalloc_wait)) {
-		wake_up(&pgdat->pfmemalloc_wait);
-		return false;
-	}
+	if (waitqueue_active(&pgdat->pfmemalloc_wait))
+		wake_up_all(&pgdat->pfmemalloc_wait);
 
 	return pgdat_balanced(pgdat, order, classzone_idx);
 }

net/batman-adv/multicast.c

···
 		if (orig_initialized)
 			atomic_dec(&bat_priv->mcast.num_disabled);
 		orig->capabilities |= BATADV_ORIG_CAPA_HAS_MCAST;
-	/* If mcast support is being switched off increase the disabled
-	 * mcast node counter.
+	/* If mcast support is being switched off or if this is an initial
+	 * OGM without mcast support then increase the disabled mcast
+	 * node counter.
 	 */
 	} else if (!orig_mcast_enabled &&
-		   orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) {
+		   (orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST ||
+		    !orig_initialized)) {
 		atomic_inc(&bat_priv->mcast.num_disabled);
 		orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_MCAST;
 	}
···
 {
 	struct batadv_priv *bat_priv = orig->bat_priv;
 
-	if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST))
+	if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) &&
+	    orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST)
 		atomic_dec(&bat_priv->mcast.num_disabled);
 
 	batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS);

net/batman-adv/network-coding.c

···
 	if (!bat_priv->nc.decoding_hash)
 		goto err;
 
-	batadv_hash_set_lock_class(bat_priv->nc.coding_hash,
+	batadv_hash_set_lock_class(bat_priv->nc.decoding_hash,
 				   &batadv_nc_decoding_hash_lock_class_key);
 
 	INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);

net/batman-adv/originator.c

···
 
 	batadv_frag_purge_orig(orig_node, NULL);
 
-	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1,
-				  "originator timed out");
-
 	if (orig_node->bat_priv->bat_algo_ops->bat_orig_free)
 		orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node);
 
···
 	atomic_set(&orig_node->last_ttvn, 0);
 	orig_node->tt_buff = NULL;
 	orig_node->tt_buff_len = 0;
+	orig_node->last_seen = jiffies;
 	reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);
 	orig_node->bcast_seqno_reset = reset_time;
 #ifdef CONFIG_BATMAN_ADV_MCAST
···
 			if (batadv_purge_orig_node(bat_priv, orig_node)) {
 				batadv_gw_node_delete(bat_priv, orig_node);
 				hlist_del_rcu(&orig_node->hash_entry);
+				batadv_tt_global_del_orig(orig_node->bat_priv,
+							  orig_node, -1,
+							  "originator timed out");
 				batadv_orig_node_free_ref(orig_node);
 				continue;
 			}

net/batman-adv/routing.c

···
 
 	router = batadv_orig_router_get(orig_node, recv_if);
 
+	if (!router)
+		return router;
+
 	/* only consider bonding for recv_if == BATADV_IF_DEFAULT (first hop)
 	 * and if activated.
 	 */
-	if (recv_if == BATADV_IF_DEFAULT || !atomic_read(&bat_priv->bonding) ||
-	    !router)
+	if (!(recv_if == BATADV_IF_DEFAULT && atomic_read(&bat_priv->bonding)))
 		return router;
 
 	/* bonding: loop through the list of possible routers found

net/ceph/auth_x.c

···
 	int ret;
 	char tmp_enc[40];
 	__le32 tmp[5] = {
-		16u, msg->hdr.crc, msg->footer.front_crc,
+		cpu_to_le32(16), msg->hdr.crc, msg->footer.front_crc,
 		msg->footer.middle_crc, msg->footer.data_crc,
 	};
 	ret = ceph_x_encrypt(&au->session_key, &tmp, sizeof(tmp),

net/ceph/mon_client.c

···
 	if (src_len != sizeof(u32) + dst_len)
 		return -EINVAL;
 
-	buf_len = le32_to_cpu(*(u32 *)src);
+	buf_len = le32_to_cpu(*(__le32 *)src);
 	if (buf_len != dst_len)
 		return -EINVAL;
 

net/ipv4/tcp_output.c

···
 		if (unlikely(!tcp_snd_wnd_test(tp, skb, mss_now)))
 			break;
 
-		if (tso_segs == 1) {
+		if (tso_segs == 1 || !max_segs) {
 			if (unlikely(!tcp_nagle_test(tp, skb, mss_now,
 						     (tcp_skb_is_last(sk, skb) ?
 						      nonagle : TCP_NAGLE_PUSH))))
···
 		}
 
 		limit = mss_now;
-		if (tso_segs > 1 && !tcp_urg_mode(tp))
+		if (tso_segs > 1 && max_segs && !tcp_urg_mode(tp))
 			limit = tcp_mss_split_point(sk, skb, mss_now,
 						    min_t(unsigned int,
 							  cwnd_quota,

net/mac80211/key.c

···
 	if (!ret) {
 		key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
 
-		if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+		if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+		      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+		      (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
 			sdata->crypto_tx_tailroom_needed_cnt--;
 
 		WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) &&
···
 	sta = key->sta;
 	sdata = key->sdata;
 
-	if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+	if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+	      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+	      (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
 		increment_tailroom_need_count(sdata);
 
 	ret = drv_set_key(key->local, DISABLE_KEY, sdata,
···
 	if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
 		key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
 
-		if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
+		if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+		      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+		      (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
 			increment_tailroom_need_count(key->sdata);
 	}
 

net/openvswitch/flow.c

···
 {
 	struct flow_stats *stats;
 	int node = numa_node_id();
+	int len = skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
 
 	stats = rcu_dereference(flow->stats[node]);
 
···
 				if (likely(new_stats)) {
 					new_stats->used = jiffies;
 					new_stats->packet_count = 1;
-					new_stats->byte_count = skb->len;
+					new_stats->byte_count = len;
 					new_stats->tcp_flags = tcp_flags;
 					spin_lock_init(&new_stats->lock);
 
···
 
 	stats->used = jiffies;
 	stats->packet_count++;
-	stats->byte_count += skb->len;
+	stats->byte_count += len;
 	stats->tcp_flags |= tcp_flags;
 unlock:
 	spin_unlock(&stats->lock);

net/openvswitch/vport.c

···
 	stats = this_cpu_ptr(vport->percpu_stats);
 	u64_stats_update_begin(&stats->syncp);
 	stats->rx_packets++;
-	stats->rx_bytes += skb->len;
+	stats->rx_bytes += skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
 	u64_stats_update_end(&stats->syncp);
 
 	OVS_CB(skb)->input_vport = vport;

net/sunrpc/xdr.c

···
 	struct kvec *head = buf->head;
 	struct kvec *tail = buf->tail;
 	int fraglen;
-	int new, old;
+	int new;
 
 	if (len > buf->len) {
 		WARN_ON_ONCE(1);
···
 	buf->len -= fraglen;
 
 	new = buf->page_base + buf->page_len;
-	old = new + fraglen;
-	xdr->page_ptr -= (old >> PAGE_SHIFT) - (new >> PAGE_SHIFT);
+
+	xdr->page_ptr = buf->pages + (new >> PAGE_SHIFT);
 
 	if (buf->page_len) {
 		xdr->p = page_address(*xdr->page_ptr);

scripts/Makefile.clean

···
 
 __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
 
-# as clean-files is given relative to the current directory, this adds
-# a $(obj) prefix, except for absolute paths
+# clean-files is given relative to the current directory, unless it
+# starts with $(objtree)/ (which means "./", so do not add "./" unless
+# you want to delete a file from the toplevel object directory).
 
 __clean-files   := $(wildcard                                               \
-                   $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
-		   $(filter /%, $(__clean-files)))
+		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
+		   $(filter $(objtree)/%, $(__clean-files)))
 
-# as clean-dirs is given relative to the current directory, this adds
-# a $(obj) prefix, except for absolute paths
+# same as clean-files
 
 __clean-dirs    := $(wildcard                                               \
-                   $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs)))    \
-		   $(filter /%, $(clean-dirs)))
+		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs)))    \
+		   $(filter $(objtree)/%, $(clean-dirs)))
 
 # ==========================================================================
 

security/keys/gc.c

···
 		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
 			atomic_dec(&key->user->nikeys);
 
-		key_user_put(key->user);
-
 		/* now throw away the key memory */
 		if (key->type->destroy)
 			key->type->destroy(key);
+
+		key_user_put(key->user);
 
 		kfree(key->description);
 

sound/firewire/fireworks/fireworks_transaction.c

···
 	spin_lock_irq(&efw->lock);
 
 	t = (struct snd_efw_transaction *)data;
-	length = min_t(size_t, t->length * sizeof(t->length), length);
+	length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length);
 
 	if (efw->push_ptr < efw->pull_ptr)
 		capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr);

sound/pci/hda/patch_hdmi.c

···
 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x10de0070, .name = "GPU 70 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de0071, .name = "GPU 71 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0072, .name = "GPU 72 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
···
 MODULE_ALIAS("snd-hda-codec-id:10de0067");
 MODULE_ALIAS("snd-hda-codec-id:10de0070");
 MODULE_ALIAS("snd-hda-codec-id:10de0071");
+MODULE_ALIAS("snd-hda-codec-id:10de0072");
 MODULE_ALIAS("snd-hda-codec-id:10de8001");
 MODULE_ALIAS("snd-hda-codec-id:11069f80");
 MODULE_ALIAS("snd-hda-codec-id:11069f81");

sound/pci/hda/patch_sigmatel.c

···
 			spec->gpio_mask;
 	}
 	if (get_int_hint(codec, "gpio_dir", &spec->gpio_dir))
-		spec->gpio_mask &= spec->gpio_mask;
-	if (get_int_hint(codec, "gpio_data", &spec->gpio_data))
 		spec->gpio_dir &= spec->gpio_mask;
+	if (get_int_hint(codec, "gpio_data", &spec->gpio_data))
+		spec->gpio_data &= spec->gpio_mask;
 	if (get_int_hint(codec, "eapd_mask", &spec->eapd_mask))
 		spec->eapd_mask &= spec->gpio_mask;
 	if (get_int_hint(codec, "gpio_mute", &spec->gpio_mute))

sound/usb/caiaq/audio.c

···
 		return -EINVAL;
 	}
 
-	if (cdev->n_streams < 2) {
+	if (cdev->n_streams < 1) {
 		dev_err(dev, "bogus number of streams: %d\n", cdev->n_streams);
 		return -EINVAL;
 	}

tools/lib/lockdep/preload.c

···
 	 *
 	 * TODO: Hook into free() and add that check there as well.
 	 */
-	debug_check_no_locks_freed(mutex, mutex + sizeof(*mutex));
+	debug_check_no_locks_freed(mutex, sizeof(*mutex));
 	__del_lock(__get_lock(mutex));
 	return ll_pthread_mutex_destroy(mutex);
 }
···
 {
 	try_init_preload();
 
-	debug_check_no_locks_freed(rwlock, rwlock + sizeof(*rwlock));
+	debug_check_no_locks_freed(rwlock, sizeof(*rwlock));
 	__del_lock(__get_lock(rwlock));
 	return ll_pthread_rwlock_destroy(rwlock);
 }

tools/perf/builtin-annotate.c

···
 		if (nr_samples > 0) {
 			total_nr_samples += nr_samples;
 			hists__collapse_resort(hists, NULL);
-			hists__output_resort(hists);
+			hists__output_resort(hists, NULL);
 
 			if (symbol_conf.event_group &&
 			    !perf_evsel__is_group_leader(pos))

tools/perf/builtin-diff.c

···
 	return __hist_entry__cmp_compute(p_left, p_right, c);
 }
 
+static int64_t
+hist_entry__cmp_nop(struct hist_entry *left __maybe_unused,
+		    struct hist_entry *right __maybe_unused)
+{
+	return 0;
+}
+
+static int64_t
+hist_entry__cmp_baseline(struct hist_entry *left, struct hist_entry *right)
+{
+	if (sort_compute)
+		return 0;
+
+	if (left->stat.period == right->stat.period)
+		return 0;
+	return left->stat.period > right->stat.period ? 1 : -1;
+}
+
+static int64_t
+hist_entry__cmp_delta(struct hist_entry *left, struct hist_entry *right)
+{
+	return hist_entry__cmp_compute(right, left, COMPUTE_DELTA);
+}
+
+static int64_t
+hist_entry__cmp_ratio(struct hist_entry *left, struct hist_entry *right)
+{
+	return hist_entry__cmp_compute(right, left, COMPUTE_RATIO);
+}
+
+static int64_t
+hist_entry__cmp_wdiff(struct hist_entry *left, struct hist_entry *right)
+{
+	return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF);
+}
+
 static void insert_hist_entry_by_compute(struct rb_root *root,
 					 struct hist_entry *he,
 					 int c)
···
 		hists__precompute(hists);
 		hists__compute_resort(hists);
 	} else {
-		hists__output_resort(hists);
+		hists__output_resort(hists, NULL);
 	}
 
 	hists__fprintf(hists, true, 0, 0, 0, stdout);
···
 	fmt->header = hpp__header;
 	fmt->width  = hpp__width;
 	fmt->entry  = hpp__entry_global;
+	fmt->cmp    = hist_entry__cmp_nop;
+	fmt->collapse = hist_entry__cmp_nop;
 
 	/* TODO more colors */
 	switch (idx) {
 	case PERF_HPP_DIFF__BASELINE:
 		fmt->color = hpp__color_baseline;
+		fmt->sort  = hist_entry__cmp_baseline;
 		break;
 	case PERF_HPP_DIFF__DELTA:
 		fmt->color = hpp__color_delta;
+		fmt->sort  = hist_entry__cmp_delta;
 		break;
 	case PERF_HPP_DIFF__RATIO:
 		fmt->color = hpp__color_ratio;
+		fmt->sort  = hist_entry__cmp_ratio;
 		break;
 	case PERF_HPP_DIFF__WEIGHTED_DIFF:
 		fmt->color = hpp__color_wdiff;
+		fmt->sort  = hist_entry__cmp_wdiff;
 		break;
 	default:
+		fmt->sort  = hist_entry__cmp_nop;
 		break;
 	}
 
 	init_header(d, dfmt);
 	perf_hpp__column_register(fmt);
+	perf_hpp__register_sort_field(fmt);
 }
 
 static void ui_init(void)

tools/perf/builtin-list.c

···
 int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	int i;
-	const struct option list_options[] = {
+	bool raw_dump = false;
+	struct option list_options[] = {
+		OPT_BOOLEAN(0, "raw-dump", &raw_dump, "Dump raw events"),
 		OPT_END()
 	};
 	const char * const list_usage[] = {
···
 		NULL
 	};
 
+	set_option_flag(list_options, 0, "raw-dump", PARSE_OPT_HIDDEN);
+
 	argc = parse_options(argc, argv, list_options, list_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 
 	setup_pager();
+
+	if (raw_dump) {
+		print_events(NULL, true);
+		return 0;
+	}
 
 	if (argc == 0) {
 		print_events(NULL, false);
···
 			print_hwcache_events(NULL, false);
 		else if (strcmp(argv[i], "pmu") == 0)
 			print_pmu_events(NULL, false);
-		else if (strcmp(argv[i], "--raw-dump") == 0)
-			print_events(NULL, true);
 		else {
 			char *sep = strchr(argv[i], ':'), *s;
 			int sep_idx;

tools/perf/builtin-report.c

···
 	ui_progress__finish();
 }
 
+static void report__output_resort(struct report *rep)
+{
+	struct ui_progress prog;
+	struct perf_evsel *pos;
+
+	ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
+
+	evlist__for_each(rep->session->evlist, pos)
+		hists__output_resort(evsel__hists(pos), &prog);
+
+	ui_progress__finish();
+}
+
 static int __cmd_report(struct report *rep)
 {
 	int ret;
···
 	if (session_done())
 		return 0;
 
+	/*
+	 * recalculate number of entries after collapsing since it
+	 * might be changed during the collapse phase.
+	 */
+	rep->nr_entries = 0;
+	evlist__for_each(session->evlist, pos)
+		rep->nr_entries += evsel__hists(pos)->nr_entries;
+
 	if (rep->nr_entries == 0) {
 		ui__error("The %s file has no samples!\n", file->path);
 		return 0;
 	}
 
-	evlist__for_each(session->evlist, pos)
-		hists__output_resort(evsel__hists(pos));
+	report__output_resort(rep);
 
 	return report__browse_hists(rep);
 }

tools/perf/builtin-top.c

···
 	}
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	hists__output_recalc_col_len(hists, top->print_entries - printed);
 	putchar('\n');
···
 	}
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 }
 
 static void *display_thread_tui(void *arg)

tools/perf/tests/hists_cumulate.c

···
 	 * function since TEST_ASSERT_VAL() returns in case of failure.
 	 */
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("use callchain: %d, cumulate callchain: %d\n",
···
 	 *   30.00%    10.00%     perf  perf           [.] cmd_record
 	 *   20.00%     0.00%     bash  libc           [.] malloc
 	 *   10.00%    10.00%     bash  [kernel]       [k] page_fault
-	 *   10.00%    10.00%     perf  [kernel]       [k] schedule
-	 *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
-	 *   10.00%    10.00%     perf  [kernel]       [k] page_fault
-	 *   10.00%    10.00%     perf  libc           [.] free
-	 *   10.00%    10.00%     perf  libc           [.] malloc
 	 *   10.00%    10.00%     bash  bash           [.] xmalloc
+	 *   10.00%    10.00%     perf  [kernel]       [k] page_fault
+	 *   10.00%    10.00%     perf  libc           [.] malloc
+	 *   10.00%    10.00%     perf  [kernel]       [k] schedule
+	 *   10.00%    10.00%     perf  libc           [.] free
+	 *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
 	 */
 	struct result expected[] = {
 		{ 7000, 2000, "perf", "perf",     "main" },
···
 		{ 3000, 1000, "perf", "perf",     "cmd_record" },
 		{ 2000,    0, "bash", "libc",     "malloc" },
 		{ 1000, 1000, "bash", "[kernel]", "page_fault" },
-		{ 1000, 1000, "perf", "[kernel]", "schedule" },
-		{ 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
+		{ 1000, 1000, "bash", "bash",     "xmalloc" },
 		{ 1000, 1000, "perf", "[kernel]", "page_fault" },
+		{ 1000, 1000, "perf", "[kernel]", "schedule" },
 		{ 1000, 1000, "perf", "libc",     "free" },
 		{ 1000, 1000, "perf", "libc",     "malloc" },
-		{ 1000, 1000, "bash", "bash",     "xmalloc" },
+		{ 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 	};
 
 	symbol_conf.use_callchain = false;
···
 	 *                  malloc
 	 *                  main
 	 *
-	 *   10.00%    10.00%     perf  [kernel]       [k] schedule
+	 *   10.00%    10.00%     bash  bash           [.] xmalloc
 	 *              |
-	 *              --- schedule
-	 *                  run_command
+	 *              --- xmalloc
+	 *                  malloc
+	 *                  xmalloc     <--- NOTE: there's a cycle
+	 *                  malloc
+	 *                  xmalloc
 	 *                  main
 	 *
 	 *   10.00%     0.00%     perf  [kernel]       [k] sys_perf_event_open
···
 	 *              |
 	 *              --- page_fault
 	 *                  sys_perf_event_open
+	 *                  run_command
+	 *                  main
+	 *
+	 *   10.00%    10.00%     perf  [kernel]       [k] schedule
+	 *              |
+	 *              --- schedule
 	 *                  run_command
 	 *                  main
 	 *
···
 	 *                  run_command
 	 *                  main
 	 *
-	 *   10.00%    10.00%     bash  bash           [.] xmalloc
-	 *              |
-	 *              --- xmalloc
-	 *                  malloc
-	 *                  xmalloc     <--- NOTE: there's a cycle
-	 *                  malloc
-	 *                  xmalloc
-	 *                  main
-	 *
 	 */
 	struct result expected[] = {
 		{ 7000, 2000, "perf", "perf",     "main" },
···
 		{ 3000, 1000, "perf", "perf",     "cmd_record" },
 		{ 2000,    0, "bash", "libc",     "malloc" },
 		{ 1000, 1000, "bash", "[kernel]", "page_fault" },
-		{ 1000, 1000, "perf", "[kernel]", "schedule" },
+		{ 1000, 1000, "bash", "bash",     "xmalloc" },
 		{ 1000,    0, "perf", "[kernel]", "sys_perf_event_open" },
 		{ 1000, 1000, "perf", "[kernel]", "page_fault" },
+		{ 1000, 1000, "perf", "[kernel]", "schedule" },
 		{ 1000, 1000, "perf", "libc",     "free" },
 		{ 1000, 1000, "perf", "libc",     "malloc" },
-		{ 1000, 1000, "bash", "bash",     "xmalloc" },
 	};
 	struct callchain_result expected_callchain[] = {
 		{
···
 				{ "bash",     "main" }, },
 		},
 		{
-			3, {	{ "[kernel]", "schedule" },
-				{ "perf",     "run_command" },
-				{ "perf",     "main" }, },
+			6, {	{ "bash",     "xmalloc" },
+				{ "libc",     "malloc" },
+				{ "bash",     "xmalloc" },
+				{ "libc",     "malloc" },
+				{ "bash",     "xmalloc" },
+				{ "bash",     "main" }, },
 		},
 		{
 			3, {	{ "[kernel]", "sys_perf_event_open" },
···
 		{
 			4, {	{ "[kernel]", "page_fault" },
 				{ "[kernel]", "sys_perf_event_open" },
+				{ "perf",     "run_command" },
+				{ "perf",     "main" }, },
+		},
+		{
+			3, {	{ "[kernel]", "schedule" },
 				{ "perf",     "run_command" },
 				{ "perf",     "main" }, },
 		},
···
 				{ "perf",     "cmd_record" },
 				{ "perf",     "run_command" },
 				{ "perf",     "main" }, },
-		},
-		{
-			6, {	{ "bash",     "xmalloc" },
-				{ "libc",     "malloc" },
-				{ "bash",     "xmalloc" },
-				{ "libc",     "malloc" },
-				{ "bash",     "xmalloc" },
-				{ "bash",     "main" }, },
 		},
 	};
 

tools/perf/tests/hists_filter.c

···
 		struct hists *hists = evsel__hists(evsel);
 
 		hists__collapse_resort(hists, NULL);
-		hists__output_resort(hists);
+		hists__output_resort(hists, NULL);
 
 		if (verbose > 2) {
 			pr_info("Normal histogram\n");

tools/perf/tests/hists_output.c

···
 		goto out;
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
···
 		goto out;
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
···
 		goto out;
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
···
 		goto out;
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
···
 		goto out;
 
 	hists__collapse_resort(hists, NULL);
-	hists__output_resort(hists);
+	hists__output_resort(hists, NULL);
 
 	if (verbose > 2) {
 		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);

tools/perf/ui/browsers/hists.c

···
 	bool need_percent;
 
 	node = rb_first(root);
-	need_percent = !!rb_next(node);
+	need_percent = node && rb_next(node);
 
 	while (node) {
 		struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);

tools/perf/ui/hist.c

···
 		if (ret)
 			return ret;
 
+		if (a->thread != b->thread || !symbol_conf.use_callchain)
+			return 0;
+
 		ret = b->callchain->max_depth - a->callchain->max_depth;
 	}
 	return ret;

tools/perf/ui/tui/setup.c

···
 #include <signal.h>
 #include <stdbool.h>
+#ifdef HAVE_BACKTRACE_SUPPORT
+#include <execinfo.h>
+#endif
 
 #include "../../util/cache.h"
 #include "../../util/debug.h"
···
 	return SLkp_getkey();
 }
 
+#ifdef HAVE_BACKTRACE_SUPPORT
+static void ui__signal_backtrace(int sig)
+{
+	void *stackdump[32];
+	size_t size;
+
+	ui__exit(false);
+	psignal(sig, "perf");
+
+	printf("-------- backtrace --------\n");
+	size = backtrace(stackdump, ARRAY_SIZE(stackdump));
+	backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
+
+	exit(0);
+}
+#else
+# define ui__signal_backtrace  ui__signal
+#endif
+
 static void ui__signal(int sig)
 {
 	ui__exit(false);
···
 	ui_browser__init();
 	tui_progress__init();
 
-	signal(SIGSEGV, ui__signal);
-	signal(SIGFPE, ui__signal);
+	signal(SIGSEGV, ui__signal_backtrace);
+	signal(SIGFPE, ui__signal_backtrace);
 	signal(SIGINT, ui__signal);
 	signal(SIGQUIT, ui__signal);
 	signal(SIGTERM, ui__signal);

tools/perf/util/callchain.c

···
 
 	return bf;
 }
+
+static void free_callchain_node(struct callchain_node *node)
+{
+	struct callchain_list *list, *tmp;
+	struct callchain_node *child;
+	struct rb_node *n;
+
+	list_for_each_entry_safe(list, tmp, &node->val, list) {
+		list_del(&list->list);
+		free(list);
+	}
+
+	n = rb_first(&node->rb_root_in);
+	while (n) {
+		child = container_of(n, struct callchain_node, rb_node_in);
+		n = rb_next(n);
+		rb_erase(&child->rb_node_in, &node->rb_root_in);
+
+		free_callchain_node(child);
+		free(child);
+	}
+}
+
+void free_callchain(struct callchain_root *root)
+{
+	if (!symbol_conf.use_callchain)
+		return;
+
+	free_callchain_node(&root->node);
+}

tools/perf/util/callchain.h

···
 char *callchain_list__sym_name(struct callchain_list *cl,
 			       char *bf, size_t bfsize, bool show_dso);
 
+void free_callchain(struct callchain_root *root);
+
 #endif	/* __PERF_CALLCHAIN_H */

tools/perf/util/hist.c

···
 #include "evlist.h"
 #include "evsel.h"
 #include "annotate.h"
+#include "ui/progress.h"
 #include <math.h>
 
 static bool hists__filter_entry_by_dso(struct hists *hists,
···
 	size_t callchain_size = 0;
 	struct hist_entry *he;
 
-	if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain)
+	if (symbol_conf.use_callchain)
 		callchain_size = sizeof(struct callchain_root);
 
 	he = zalloc(sizeof(*he) + callchain_size);
···
 	iter->he = he;
 	he_cache[iter->curr++] = he;
 
-	callchain_append(he->callchain, &callchain_cursor, sample->period);
+	hist_entry__append_callchain(he, sample);
 
 	/*
 	 * We need to re-initialize the cursor since callchain_append()
···
 	iter->he = he;
 	he_cache[iter->curr++] = he;
 
-	callchain_append(he->callchain, &cursor, sample->period);
+	if (symbol_conf.use_callchain)
+		callchain_append(he->callchain, &cursor, sample->period);
 	return 0;
 }
 
···
 	zfree(&he->mem_info);
 	zfree(&he->stat_acc);
 	free_srcline(he->srcline);
+	free_callchain(he->callchain);
 	free(he);
 }
 
···
 		else
 			p = &(*p)->rb_right;
 	}
+	hists->nr_entries++;
 
 	rb_link_node(&he->rb_node_in, parent, p);
 	rb_insert_color(&he->rb_node_in, root);
···
 	if (!sort__need_collapse)
 		return;
 
+	hists->nr_entries = 0;
+
 	root = hists__get_rotate_entries_in(hists);
+
 	next = rb_first(root);
 
 	while (next) {
···
 	rb_insert_color(&he->rb_node, entries);
 }
 
-void hists__output_resort(struct hists *hists)
+void hists__output_resort(struct hists *hists, struct ui_progress *prog)
 {
 	struct rb_root *root;
 	struct rb_node *next;
···
 
 		if (!n->filtered)
 			hists__calc_col_len(hists, n);
+
+		if (prog)
+			ui_progress__update(prog, 1);
 	}
 }
 

tools/perf/util/hist.h

···
 			      struct hists *hists);
 void hist_entry__free(struct hist_entry *);
 
-void hists__output_resort(struct hists *hists);
+void hists__output_resort(struct hists *hists, struct ui_progress *prog);
 void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
 
 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);

tools/perf/util/probe-event.c

···
 	}
 
 	if (ntevs == 0)	{	/* No error but failed to find probe point. */
-		pr_warning("Probe point '%s' not found.\n",
+		pr_warning("Probe point '%s' not found in debuginfo.\n",
 			   synthesize_perf_probe_point(&pev->point));
-		return -ENOENT;
+		if (need_dwarf)
+			return -ENOENT;
+		return 0;
 	}
 	/* Error path : ntevs < 0 */
 	pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);

tools/perf/util/probe-finder.c

···
 	int ret = 0;
 
 #if _ELFUTILS_PREREQ(0, 142)
+	Elf *elf;
+	GElf_Ehdr ehdr;
+	GElf_Shdr shdr;
+
 	/* Get the call frame information from this dwarf */
-	pf->cfi = dwarf_getcfi_elf(dwarf_getelf(dbg->dbg));
+	elf = dwarf_getelf(dbg->dbg);
+	if (elf == NULL)
+		return -EINVAL;
+
+	if (gelf_getehdr(elf, &ehdr) == NULL)
+		return -EINVAL;
+
+	if (elf_section_by_name(elf, &ehdr, &shdr, ".eh_frame", NULL) &&
+	    shdr.sh_type == SHT_PROGBITS) {
+		pf->cfi = dwarf_getcfi_elf(elf);
+	} else {
+		pf->cfi = dwarf_getcfi(dbg->dbg);
+	}
 #endif
 
 	off = 0;

tools/testing/selftests/exec/execveat.c

···
 }
 
 static int check_execveat_invoked_rc(int fd, const char *path, int flags,
-				     int expected_rc)
+				     int expected_rc, int expected_rc2)
 {
 	int status;
 	int rc;
···
 			child, status);
 		return 1;
 	}
-	if (WEXITSTATUS(status) != expected_rc) {
-		printf("[FAIL] (child %d exited with %d not %d)\n",
-			child, WEXITSTATUS(status), expected_rc);
+	if ((WEXITSTATUS(status) != expected_rc) &&
+	    (WEXITSTATUS(status) != expected_rc2)) {
+		printf("[FAIL] (child %d exited with %d not %d nor %d)\n",
+			child, WEXITSTATUS(status), expected_rc, expected_rc2);
 		return 1;
 	}
 	printf("[OK]\n");
···
 
 static int check_execveat(int fd, const char *path, int flags)
 {
-	return check_execveat_invoked_rc(fd, path, flags, 99);
+	return check_execveat_invoked_rc(fd, path, flags, 99, 99);
 }
 
 static char *concat(const char *left, const char *right)
···
 	 * Execute as a long pathname relative to ".".  If this is a script,
 	 * the interpreter will launch but fail to open the script because its
 	 * name ("/dev/fd/5/xxx....") is bigger than PATH_MAX.
+	 *
+	 * The failure code is usually 127 (POSIX: "If a command is not found,
+	 * the exit status shall be 127."), but some systems give 126 (POSIX:
+	 * "If the command name is found, but it is not an executable utility,
+	 * the exit status shall be 126."), so allow either.
 	 */
 	if (is_script)
-		fail += check_execveat_invoked_rc(dot_dfd, longpath, 0, 127);
+		fail += check_execveat_invoked_rc(dot_dfd, longpath, 0,
+						  127, 126);
 	else
 		fail += check_execveat(dot_dfd, longpath, 0);
 

tools/testing/selftests/mqueue/mq_perf_tests.c

···
 {
 	struct mq_attr attr;
 	char *option, *next_option;
-	int i, cpu;
+	int i, cpu, rc;
 	struct sigaction sa;
 	poptContext popt_context;
-	char rc;
 	void *retval;
 
 	main_thread = pthread_self();

tools/testing/selftests/vm/Makefile

···
 
 all: $(BINARIES)
 %: %.c
-	$(CC) $(CFLAGS) -o $@ $^
+	$(CC) $(CFLAGS) -o $@ $^ -lrt
 
 run_tests: all
 	@/bin/sh ./run_vmtests || (echo "vmtests: [FAIL]"; exit 1)