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| author | Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2010-06-11 21:32:34 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-08-01 10:46:43 +0300 |
| commit | ebdea638df04ae6293a9a5414d98ad843c69e82f (patch) | |
| tree | dc656eba6f0a0e0c9baa63c1b1116a19b913b349 /arch/x86/kvm/mmu.c | |
| parent | be71e061d15c0aad4f8c2606f76c57b8a19792fd (diff) | |
| download | lwn-ebdea638df04ae6293a9a5414d98ad843c69e82f.tar.gz lwn-ebdea638df04ae6293a9a5414d98ad843c69e82f.zip | |
KVM: MMU: cleanup for __mmu_unsync_walk()
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>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d1e09f3c5614..41e801b53064 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -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; } |