On Monday, 27 November 2006 00:28, Pavel Machek wrote: > Hi! > > > > If frozen is atomic_t, do we need memory barrier? > > > > I think so. For example on x86-64 atomic_read() is just a read. > > I'm not sure, but for x86-64 barriers are nops, anyway, IIRC. Well, last time I checked they were "lfence" and "sfence", at least on SMP. Greetings, Rafael
