> I have a question for the x86 gurus. We're currently using the lock > prefix for set_64bit. This will lock the bus for the RMW cycle, but > is it a prerequisite for the atomic 64-bit store? Even on UP? An atomic 64bit store doesn't need a lock prefix. A cmpxchg will need to though. Note that UP kernels define LOCK to nothing. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlReceived on Fri Jan 14 05:49:35 2005
This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:34 EST