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KVM: MMU: optimize pte write path if don't have protected sp
authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Sun, 15 May 2011 15:20:27 +0000 (23:20 +0800)
committerAvi Kivity <avi@redhat.com>
Tue, 12 Jul 2011 08:45:02 +0000 (11:45 +0300)
Simply return from kvm_mmu_pte_write path if no shadow page is
write-protected, then we can avoid to walk all shadow pages and hold
mmu-lock

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

No differences found
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