diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/traps.c | 4 |
2 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 1d4e4f279a32..a2fa1899494e 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -159,8 +159,7 @@ DECLARE_PER_CPU(unsigned long, kernel_stack); static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; - ti = (void *)(this_cpu_read_stable(kernel_stack) + - KERNEL_STACK_OFFSET - THREAD_SIZE); + ti = (void *)(this_cpu_sp0() - THREAD_SIZE); return ti; } diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 9965bd1916db..fa290586ed37 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -174,8 +174,8 @@ void ist_begin_non_atomic(struct pt_regs *regs) * will catch asm bugs and any attempt to use ist_preempt_enable * from double_fault. */ - BUG_ON(((current_stack_pointer() ^ this_cpu_read_stable(kernel_stack)) - & ~(THREAD_SIZE - 1)) != 0); + BUG_ON((unsigned long)(this_cpu_sp0() - current_stack_pointer()) >= + THREAD_SIZE); preempt_count_sub(HARDIRQ_OFFSET); } |