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| author | Ingo Molnar <mingo@elte.hu> | 2008-11-26 08:22:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-26 08:22:50 +0100 |
| commit | 7fbb8759eff9a348efa5f352ffaa51c364837c4b (patch) | |
| tree | d40cd3f47b9f667ba94d9613270132080dcb6a1a /arch/um/sys-i386/shared/sysdep/barrier.h | |
| parent | 6003ab0bad4cc56f3c4fadf62a0d23a967b9c53b (diff) | |
| parent | 13d428afc007fcfcd6deeb215618f54cf9c0cae6 (diff) | |
Merge commit 'v2.6.28-rc6' into core/debug
Diffstat (limited to 'arch/um/sys-i386/shared/sysdep/barrier.h')
| -rw-r--r-- | arch/um/sys-i386/shared/sysdep/barrier.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/um/sys-i386/shared/sysdep/barrier.h b/arch/um/sys-i386/shared/sysdep/barrier.h new file mode 100644 index 00000000000..b58d52c5b2f --- /dev/null +++ b/arch/um/sys-i386/shared/sysdep/barrier.h @@ -0,0 +1,9 @@ +#ifndef __SYSDEP_I386_BARRIER_H +#define __SYSDEP_I386_BARRIER_H + +/* Copied from include/asm-i386 for use by userspace. i386 has the option + * of using mfence, but I'm just using this, which works everywhere, for now. + */ +#define mb() asm volatile("lock; addl $0,0(%esp)") + +#endif |