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| author | Andy Lutomirski <luto@kernel.org> | 2016-09-13 23:29:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-15 08:25:13 +0200 |
| commit | 15f4eae70d365bba26854c90b6002aaabb18c8aa (patch) | |
| tree | 5bd5521c59c7d473357300dbb4da27af4b7d19e7 /arch/x86/kernel/process.c | |
| parent | sched/core: Allow putting thread_info into task_struct (diff) | |
| download | linux-15f4eae70d365bba26854c90b6002aaabb18c8aa.tar.xz linux-15f4eae70d365bba26854c90b6002aaabb18c8aa.zip | |
x86: Move thread_info into task_struct
Now that most of the thread_info users have been cleaned up,
this is straightforward.
Most of this code was written by Linus.
Originally-from: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jann Horn <jann@thejh.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/a50eab40abeaec9cb9a9e3cbdeafd32190206654.1473801993.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index c1fa790c81cd..0b9ed8ec5226 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -549,9 +549,7 @@ unsigned long get_wchan(struct task_struct *p) * PADDING * ----------- top = topmax - TOP_OF_KERNEL_STACK_PADDING * stack - * ----------- bottom = start + sizeof(thread_info) - * thread_info - * ----------- start + * ----------- bottom = start * * The tasks stack pointer points at the location where the * framepointer is stored. The data on the stack is: @@ -562,7 +560,7 @@ unsigned long get_wchan(struct task_struct *p) */ top = start + THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING; top -= 2 * sizeof(unsigned long); - bottom = start + sizeof(struct thread_info); + bottom = start; sp = READ_ONCE(p->thread.sp); if (sp < bottom || sp > top) |