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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-02-14 10:50:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-02-14 10:50:26 -0800 |
| commit | 2d23e61fa2ecef787c3d1198b8ce8333264b5b8e (patch) | |
| tree | f6d385ffcd5e42d24023f4db8c862fae7237c580 /arch/x86/include/asm/processor.h | |
| parent | ab57a6111c987456f6848e20c55764d75f67ca2d (diff) | |
| parent | 59fd1214561921343305a0e9dc218bf3d40068f3 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two small fixlets for x86:
- Prevent a KASAN false positive in thread_saved_pc()
- Fix a 32-bit truncation problem in the x86 numa code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/numa: Fix 32-bit memblock range truncation bug on 32-bit NUMA kernels
x86: Fix KASAN false positives in thread_saved_pc()
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 2d5a50cb61a2..20c11d1aa4cc 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -766,7 +766,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); * Return saved PC of a blocked thread. * What is this good for? it will be always the scheduler or ret_from_fork. */ -#define thread_saved_pc(t) (*(unsigned long *)((t)->thread.sp - 8)) +#define thread_saved_pc(t) READ_ONCE_NOCHECK(*(unsigned long *)((t)->thread.sp - 8)) #define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1) extern unsigned long KSTK_ESP(struct task_struct *task); |