About smp_mb in the mutex locks
From: shan kang <hidden>
Date: 2012-07-11 08:14:39
From: shan kang <hidden>
Date: 2012-07-11 08:14:39
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. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20120711/10906e25/attachment-0001.html>