Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[PATCH] mips: task_stack_page()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
authored by Al Viro and committed by Linus Torvalds 75bb07e7 dc8f6029
+3
-3
arch/mips/kernel/process.c
+3
-3
arch/mips/kernel/process.c
···
140
int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
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unsigned long unused, struct task_struct *p, struct pt_regs *regs)
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{
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-
struct thread_info *ti = p->thread_info;
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struct pt_regs *childregs;
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long childksp;
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p->set_child_tid = p->clear_child_tid = NULL;
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-
childksp = (unsigned long)ti + THREAD_SIZE - 32;
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preempt_disable();
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···
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if (!p || p == current || p->state == TASK_RUNNING)
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return 0;
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-
stack_page = (unsigned long)p->thread_info;
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if (!stack_page || !mips_frame_info_initialized)
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return 0;
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···
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int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
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unsigned long unused, struct task_struct *p, struct pt_regs *regs)
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{
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+
struct thread_info *ti = task_thread_info(p);
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struct pt_regs *childregs;
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long childksp;
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p->set_child_tid = p->clear_child_tid = NULL;
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+
childksp = (unsigned long)task_stack_page(p) + THREAD_SIZE - 32;
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preempt_disable();
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···
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if (!p || p == current || p->state == TASK_RUNNING)
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return 0;
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+
stack_page = (unsigned long)task_stack_page(p);
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if (!stack_page || !mips_frame_info_initialized)
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return 0;
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+1
-1
include/asm-mips/processor.h
+1
-1
include/asm-mips/processor.h
···
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unsigned long get_wchan(struct task_struct *p);
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-
#define __KSTK_TOS(tsk) ((unsigned long)(tsk->thread_info) + THREAD_SIZE - 32)
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#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1)
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#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc)
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#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])
···
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unsigned long get_wchan(struct task_struct *p);
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+
#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32)
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#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1)
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#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc)
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#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])