sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h>

We are going to split <linux/sched/coredump.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/coredump.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <[e-mail]>
Cc: Mike Galbraith <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: [e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

fs/binfmt_elf.c

···
 #include <linux/utsname.h>
 #include <linux/coredump.h>
 #include <linux/sched.h>
+#include <linux/sched/coredump.h>
 #include <linux/dax.h>
 #include <linux/uaccess.h>
 #include <asm/param.h>

fs/binfmt_elf_fdpic.c

···
 #include <linux/elf-fdpic.h>
 #include <linux/elfcore.h>
 #include <linux/coredump.h>
+#include <linux/sched/coredump.h>
 #include <linux/dax.h>
 
 #include <linux/uaccess.h>

fs/coredump.c

···
 #include <linux/personality.h>
 #include <linux/binfmts.h>
 #include <linux/coredump.h>
+#include <linux/sched/coredump.h>
 #include <linux/utsname.h>
 #include <linux/pid_namespace.h>
 #include <linux/module.h>

fs/exec.c

···
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/pagemap.h>
 #include <linux/perf_event.h>
 #include <linux/highmem.h>

fs/proc/base.c

···
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/flex_array.h>
 #include <linux/posix-timers.h>
 #ifdef CONFIG_HARDWALL

fs/proc/internal.h

···
 #include <linux/spinlock.h>
 #include <linux/atomic.h>
 #include <linux/binfmts.h>
+#include <linux/sched/coredump.h>
 
 struct ctl_table_header;
 struct mempolicy;

include/linux/khugepaged.h

···
 #ifndef _LINUX_KHUGEPAGED_H
 #define _LINUX_KHUGEPAGED_H
 
-#include <linux/sched.h> /* MMF_VM_HUGEPAGE */
+#include <linux/sched/coredump.h> /* MMF_VM_HUGEPAGE */
+
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 extern struct attribute_group khugepaged_attr_group;

include/linux/ksm.h

···
 #include <linux/pagemap.h>
 #include <linux/rmap.h>
 #include <linux/sched.h>
+#include <linux/sched/coredump.h>
 
 struct stable_node;
 struct mem_cgroup;

include/linux/sched/coredump.h

···
+#ifndef _LINUX_SCHED_COREDUMP_H
+#define _LINUX_SCHED_COREDUMP_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_COREDUMP_H */

kernel/cred.c

···
 #include <linux/cred.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/sched/coredump.h>
 #include <linux/key.h>
 #include <linux/keyctl.h>
 #include <linux/init_task.h>

kernel/events/uprobes.c

···
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/export.h>
 #include <linux/rmap.h>		/* anon_vma_prepare */
 #include <linux/mmu_notifier.h>	/* set_pte_at_notify */

kernel/fork.c

···
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
 #include <linux/module.h>

kernel/ptrace.c

···
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>

kernel/sys.c

···
 #include <linux/sched/autogroup.h>
 #include <linux/sched/loadavg.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
 #include <linux/cred.h>

kernel/sysctl.c

···
 #include <linux/capability.h>
 #include <linux/binfmts.h>
 #include <linux/sched/sysctl.h>
+#include <linux/sched/coredump.h>
 #include <linux/kexec.h>
 #include <linux/bpf.h>
 #include <linux/mount.h>

mm/huge_memory.c

···
 
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/coredump.h>
 #include <linux/highmem.h>
 #include <linux/hugetlb.h>
 #include <linux/mmu_notifier.h>

mm/khugepaged.c

···
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/mmu_notifier.h>
 #include <linux/rmap.h>
 #include <linux/swap.h>

mm/ksm.c

···
 #include <linux/mman.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/rwsem.h>
 #include <linux/pagemap.h>
 #include <linux/rmap.h>

mm/memory.c

···
 #include <linux/kernel_stat.h>
 #include <linux/mm.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/swap.h>

mm/oom_kill.c

···
 #include <linux/gfp.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/coredump.h>
 #include <linux/swap.h>
 #include <linux/timex.h>
 #include <linux/jiffies.h>