i386: speedup touch_nmi_watchdog
authorAndrew Morton <akpm@linux-foundation.org>
Tue, 17 Jul 2007 11:03:57 +0000 (04:03 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 17 Jul 2007 17:23:04 +0000 (10:23 -0700)
commitf2890255b0ade497893d1e5e99f519b5c1d50f7d
tree54657c4bbe91325960ac2da676a5d212a8866544
parent1c978b935e81da9434342f0bc8263c6cfe1214ce
i386: 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>
arch/i386/kernel/nmi.c