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Date: Mon, 14 Jul 2008 15:27:06 -0700 (PDT) From: Linus Torvalds <torvalds@...ux-foundation.org> To: Ingo Molnar <mingo@...e.hu> cc: linux-kernel@...r.kernel.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org> Subject: Re: [git pull] core/percpu for v2.6.27 On Mon, 14 Jul 2008, Ingo Molnar wrote: > > Please pull the latest core/percpu git tree from: > > git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git core/percpu Can you explain what this does and who needs it? The percpu_xchg() looks particularly pointless, since it's always a locked SMP-safe instruction on x86, so a nonpreemptible load+store will likely be much faster. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org 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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