diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:48 +0200 |
| commit | 4cb1f43ce8c72ee453c00fcb9f6ee9c4ebd03f98 (patch) | |
| tree | 15e64f192b54ea01fd640d69eed0cabed2baaaa9 /arch/x86/lib | |
| parent | 9de4966a4d218f29c68e96e8e7b4d2840dedec79 (diff) | |
| parent | 0ee5623f9a6e52df90a78bd21179f8ab370e102e (diff) | |
Merge commit 'v2.6.39-rc6' into x86/cleanups
Merge reason: move to a (much) newer upstream base.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/lib')
| -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 |