From: Luca Tettamanti <kronos.it@gmail.com>
Date: Tue, 19 Jun 2007 20:41:38 +0000 (+0200)
Subject: KVM: Avoid useless memory write when possible
X-Git-Tag: v2.6.23-rc1~520^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3c870bdce4d34332ebdba7eb9969592c4c6b243;p=pandora-kernel.git

KVM: Avoid useless memory write when possible

When writing to normal memory and the memory area is unchanged the write
can be safely skipped, avoiding the costly kvm_mmu_pte_write.

Signed-Off-By: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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