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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-08-03 15:42:52 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-08-06 16:04:58 +0300 |
| commit | 32cad84f44d186654492f1a50a1424c8906ccbd9 (patch) | |
| tree | 8a5e7d77edac00a763d3e48aa4d7bf296e671e2b /virt | |
| parent | cb9aaa30b133574b646d9d4766ef08a843211393 (diff) | |
| download | lwn-32cad84f44d186654492f1a50a1424c8906ccbd9.tar.gz lwn-32cad84f44d186654492f1a50a1424c8906ccbd9.zip | |
KVM: do not release the error page
After commit a2766325cf9f9, the error page is replaced by the
error code, it need not be released anymore
[ The patch has been compiling tested for powerpc ]
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 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
2 files changed, 5 insertions, 4 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 56f553391896..ea475cd03511 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -111,7 +111,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) list_entry(vcpu->async_pf.done.next, typeof(*work), link); list_del(&work->link); - if (work->page) + if (!is_error_page(work->page)) kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } @@ -138,7 +138,7 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu) list_del(&work->queue); vcpu->async_pf.queued--; - if (work->page) + if (!is_error_page(work->page)) kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eafba99d1070..a2e85af847c1 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1186,8 +1186,9 @@ EXPORT_SYMBOL_GPL(gfn_to_page); void kvm_release_page_clean(struct page *page) { - if (!is_error_page(page)) - kvm_release_pfn_clean(page_to_pfn(page)); + WARN_ON(is_error_page(page)); + + kvm_release_pfn_clean(page_to_pfn(page)); } EXPORT_SYMBOL_GPL(kvm_release_page_clean); |