Messages in this thread | | | Date | Thu, 12 Jul 2012 10:14:35 +0800 | Subject | ARM: why smp_mb() is not needed in the "__mutex_fastpath_lock" and "__mutex_fastpath_unlock" functions | From | shan kang <> |
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Hello, I wonder why smp_mb() is not needed in the "__mutex_fastpath_lock" and "__mutex_fastpath_unlock" functions which are located in the "arch/arm/include/asm/mutex.h"? I think "dmb" instruction is necessary there.
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