barriers in mutexes?

Steve Muckle smuckle at codeaurora.org
Wed Feb 2 21:05:46 EST 2011


Hello,

Looking at kernel/mutex.c and arch/arm/include/asm/mutex.h, it appears
there aren't any memory barriers in the fast path of mutexes. I see this
was discussed here a long time back:

http://patchwork.kernel.org/patch/25856/

How was this resolved?

thanks,
Steve

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