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Date: Mon, 29 Jun 2009 10:59:57 -0600 From: Zan Lynx <zlynx@....org> To: Andi Kleen <andi@...stfloor.org> CC: Jiri Olsa <jolsa@...hat.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, fbl@...hat.com, nhorman@...hat.com, davem@...hat.com, oleg@...hat.com, eric.dumazet@...il.com Subject: Re: [PATCH] net: fix race in the receive/select Andi Kleen wrote: > At least on x86 I can't see how it happens. mb() is only a compile > time barrier and the compiler doesn't optimize over indirect callbacks > like __pollwait() anyways. Just a note about this. That used to be true, that GCC didn't optimize indirect calls. However, see -findirect-inlining in GCC 4.4. I am not saying that it applies here, but it is something to remember. -- Zan Lynx zlynx@....org "Knowledge is Power. Power Corrupts. Study Hard. Be Evil." -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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