diff options
| author | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
| commit | b32e3dc7860d00124fa432dba09667e647cb9bcc (patch) | |
| tree | 2fa6e56f389431dfb84609d3d7572cad76e88e71 /arch/x86/lib/cmpxchg16b_emu.S | |
| parent | 6604271c5bc658a6067ed0c3deba4d89e0e50382 (diff) | |
| parent | 96120d86fe302c006259baee9061eea9e1b9e486 (diff) | |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
Diffstat (limited to 'arch/x86/lib/cmpxchg16b_emu.S')
| -rw-r--r-- | arch/x86/lib/cmpxchg16b_emu.S | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S index 3e8b08a6de2..1e572c507d0 100644 --- a/arch/x86/lib/cmpxchg16b_emu.S +++ b/arch/x86/lib/cmpxchg16b_emu.S @@ -10,6 +10,12 @@ #include <asm/frame.h> #include <asm/dwarf2.h> +#ifdef CONFIG_SMP +#define SEG_PREFIX %gs: +#else +#define SEG_PREFIX +#endif + .text /* @@ -37,13 +43,13 @@ this_cpu_cmpxchg16b_emu: pushf cli - cmpq %gs:(%rsi), %rax + cmpq SEG_PREFIX(%rsi), %rax jne not_same - cmpq %gs:8(%rsi), %rdx + cmpq SEG_PREFIX 8(%rsi), %rdx jne not_same - movq %rbx, %gs:(%rsi) - movq %rcx, %gs:8(%rsi) + movq %rbx, SEG_PREFIX(%rsi) + movq %rcx, SEG_PREFIX 8(%rsi) popf mov $1, %al |