aboutsummaryrefslogtreecommitdiff
path: root/virt/kvm/async_pf.c
diff options
context:
space:
mode:
authorXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>2012-07-26 11:58:59 +0800
committerAvi Kivity <avi@redhat.com>2012-07-26 11:55:34 +0300
commita2766325cf9f9e36d1225145f1ce1b066f001837 (patch)
treea00cefe5c199c7e4845294f38475c3abd90e9419 /virt/kvm/async_pf.c
parent2b4b5af8f8e7296bc27c52023ab6bb8f53db3a2b (diff)
downloadvexpress-lsk-a2766325cf9f9e36d1225145f1ce1b066f001837.tar.gz
KVM: remove dummy pages
Currently, kvm allocates some pages and use them as error indicators, it wastes memory and is not good for scalability Base on Avi's suggestion, we use the error codes instead of these pages to indicate the error conditions Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt/kvm/async_pf.c')
-rw-r--r--virt/kvm/async_pf.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index ebae24b62c9..79722782d9d 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -203,8 +203,7 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu)
if (!work)
return -ENOMEM;
- work->page = bad_page;
- get_page(bad_page);
+ work->page = get_bad_page();
INIT_LIST_HEAD(&work->queue); /* for list_del to work */
spin_lock(&vcpu->async_pf.lock);