On Thu, 16 Aug 2007, Paul Mackerras wrote: > Herbert Xu writes: > > > It doesn't matter. The memory pressure flag is an *advisory* > > flag. If we get it wrong the worst that'll happen is that we'd > > waste some time doing work that'll be thrown away. > > Ah, so it's the "racy but I don't care because it's only an > optimization" case. That's fine. Somehow I find it hard to believe > that all the racy uses of atomic_read in the kernel are like that, > though. :) My use of atomic_read in SLUB is like that. Volatile does not magically sync up reads somehow. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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