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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-07-26 11:58:17 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-07-26 11:55:31 +0300 |
| commit | 2b4b5af8f8e7296bc27c52023ab6bb8f53db3a2b (patch) | |
| tree | fc0f1de2dc0c01a43cc45c85737b54953421f93c /virt | |
| parent | 3b2bd2f800ba9488d9ad493216a0c07d71055b56 (diff) | |
| download | lwn-2b4b5af8f8e7296bc27c52023ab6bb8f53db3a2b.tar.gz lwn-2b4b5af8f8e7296bc27c52023ab6bb8f53db3a2b.zip | |
KVM: use kvm_release_page_clean to release the page
In kvm_async_pf_wakeup_all, it uses bad_page to generate broadcast wakeup,
and uses put_page to release bad_page, the work depends on the fact that
bad_page is the normal page. But we will use the error code instead of
bad_page, so use kvm_release_page_clean to release the page which will
release the error code properly
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/async_pf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 74268b4c2ee1..ebae24b62c90 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -112,7 +112,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) typeof(*work), link); list_del(&work->link); if (work->page) - put_page(work->page); + kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } spin_unlock(&vcpu->async_pf.lock); @@ -139,7 +139,7 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu) list_del(&work->queue); vcpu->async_pf.queued--; if (work->page) - put_page(work->page); + kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } } |