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KVM: MMU: cleanup for __mmu_unsync_walk()

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Decrease sp->unsync_children after clear unsync_child_bitmap bit

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Xiao Guangrong 2010-06-11 21:32:34 +08:00 committed by Avi Kivity
parent be71e061d1
commit ebdea638df
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kvm/mmu.c
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@ -1160,9 +1160,11 @@ static int __mmu_unsync_walk(struct kvm_mmu_page *sp,
return -ENOSPC;
ret = __mmu_unsync_walk(child, pvec);
if (!ret)
if (!ret) {
__clear_bit(i, sp->unsync_child_bitmap);
else if (ret > 0)
sp->unsync_children--;
WARN_ON((int)sp->unsync_children < 0);
} else if (ret > 0)
nr_unsync_leaf += ret;
else
return ret;
@ -1176,8 +1178,6 @@ static int __mmu_unsync_walk(struct kvm_mmu_page *sp,
}
}
if (find_first_bit(sp->unsync_child_bitmap, 512) == 512)
sp->unsync_children = 0;
return nr_unsync_leaf;
}