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| author | H. Peter Anvin <hpa@linux.intel.com> | 2010-07-29 00:18:35 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-07-29 00:24:09 +0200 |
| commit | 4532b305e8f0c238dd73048068ff8a6dd1380291 (patch) | |
| tree | e4f9e4d78385dc45ab2456edf02ab515442f1cc1 /arch/x86/lib | |
| parent | x86, asm: Clean up and simplify set_64bit() (diff) | |
| download | linux-4532b305e8f0c238dd73048068ff8a6dd1380291.tar.xz linux-4532b305e8f0c238dd73048068ff8a6dd1380291.zip | |
x86, asm: Clean up and simplify <asm/cmpxchg.h>
Remove the __xg() hack to create a memory barrier near xchg and
cmpxchg; it has been there since 1.3.11 but should not be necessary
with "asm volatile" and a "memory" clobber, neither of which were
there in the original implementation.
However, we *should* make this a volatile reference.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <AANLkTikAmaDPji-TVDarmG1yD=fwbffcsmEU=YEuP+8r@mail.gmail.com>
Diffstat (limited to 'arch/x86/lib')
0 files changed, 0 insertions, 0 deletions