diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-22 15:07:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-22 15:07:35 -0700 |
| commit | 17413f5acd03224bcd09eefc5c4088894e832cad (patch) | |
| tree | 9912a2a6fc13ce7e081d4b25e0051f0fb245c099 /arch/x86/include | |
| parent | 5a791ea4fa4495f7136679cb5366f6544148e613 (diff) | |
| parent | 688d3be815b1563b1484ce67702249a4a7a6314e (diff) | |
Merge branch 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: Fixup __this_cpu_xchg* operations
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/percpu.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index a0a9779084d..3470c9d0ebb 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -388,12 +388,9 @@ do { \ #define __this_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val) #define __this_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val) #define __this_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val) -/* - * Generic fallback operations for __this_cpu_xchg_[1-4] are okay and much - * faster than an xchg with forced lock semantics. - */ -#define __this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) -#define __this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) +#define __this_cpu_xchg_1(pcp, val) percpu_xchg_op(pcp, val) +#define __this_cpu_xchg_2(pcp, val) percpu_xchg_op(pcp, val) +#define __this_cpu_xchg_4(pcp, val) percpu_xchg_op(pcp, val) #define this_cpu_read_1(pcp) percpu_from_op("mov", (pcp), "m"(pcp)) #define this_cpu_read_2(pcp) percpu_from_op("mov", (pcp), "m"(pcp)) @@ -485,6 +482,8 @@ do { \ #define __this_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val) #define __this_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val) #define __this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val) +#define __this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval) +#define __this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval) #define this_cpu_read_8(pcp) percpu_from_op("mov", (pcp), "m"(pcp)) #define this_cpu_write_8(pcp, val) percpu_to_op("mov", (pcp), val) |