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Hi :
memory barriers can not make order on other cpus, only the current cpu's order will be promised.
> Date: Fri, 9 Dec 2011 12:54:40 +0530 > Subject: Memory barrier > From: trisha1march@xxxxxxxxx > To: Kernelnewbies@xxxxxxxxxxxxxxxxx > > Hi All, > > I need small clarification on memory barrier. > #define smp_mb() mb() > #define smp_rmb() rmb() > #define smp_wmb() wmb() > In case of SMP: > is smp_mb() or smp_rmb() make order on current CPU or all cpu's > > Thanks > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies |
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