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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-31 08:31:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-31 08:31:57 +0100 |
| commit | a9de18eb761f7c1c860964b2e5addc1a35c7e861 (patch) | |
| tree | 886e75fdfd09690cd262ca69cb7f5d1d42b48602 /arch/um/sys-i386/shared/sysdep/barrier.h | |
| parent | b2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (diff) | |
| parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
Merge branch 'linus' into stackprotector
Conflicts:
arch/x86/include/asm/pda.h
kernel/fork.c
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 |