/arch/um/sys-i386/shared/sysdep/barrier.h

https://bitbucket.org/cresqo/cm7-p500-kernel · C Header · 9 lines · 4 code · 2 blank · 3 comment · 0 complexity · abd316f38538ea29e00a9fa6e6775c81 MD5 · raw file 

    

  1. #ifndef __SYSDEP_I386_BARRIER_H
    2. 

  2. #define __SYSDEP_I386_BARRIER_H
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  3. 

  4. /* Copied from include/asm-i386 for use by userspace.  i386 has the option
    5. 

  5.  * of using mfence, but I'm just using this, which works everywhere, for now.
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  6.  */
    7. 

  7. #define mb() asm volatile("lock; addl $0,0(%esp)")
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  8. 

  9. #endif
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