From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 17 Jul 2007 11:03:58 +0000 (-0700)
Subject: x86_64: speedup touch_nmi_watchdog
X-Git-Tag: v2.6.23-rc1~705
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=567f3e422a9a155d7c7643148efb5bf959065d34;p=pandora-kernel.git

x86_64: speedup touch_nmi_watchdog

Avoid dirtying remote cpu's memory if it already has the correct value.

Cc: Andi Kleen <ak@suse.de>
Cc: Konrad Rzeszutek <konrad@darnok.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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