Re: [PATCH] net: fix race in the receive/select

Zan Lynx
2009-06-29T17:23:47Z

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@acm.org

"Knowledge is Power. Power Corrupts. Study Hard. Be Evil."