Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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()
+2
-2
+1
-1
arch/x86/include/asm/processor.h
+1
-1
arch/x86/include/asm/processor.h
···
766
766
* Return saved PC of a blocked thread.
767
767
* What is this good for? it will be always the scheduler or ret_from_fork.
768
768
*/
769
-
#define thread_saved_pc(t) (*(unsigned long *)((t)->thread.sp - 8))
769
+
#define thread_saved_pc(t) READ_ONCE_NOCHECK(*(unsigned long *)((t)->thread.sp - 8))
770
770
771
771
#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1)
772
772
extern unsigned long KSTK_ESP(struct task_struct *task);