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authorXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>2012-08-03 15:41:22 +0800
committerAvi Kivity <avi@redhat.com>2012-08-06 16:04:55 +0300
commit6cede2e6794be6b0649f62d3681e0c4aff5a9270 (patch)
treeb05fdcfd0db7974c7ed7f036d07520ac4c12202f /virt
parent9a592a953880fd6981955e69c1476ce541d9bd16 (diff)
downloadvexpress-lsk-6cede2e6794be6b0649f62d3681e0c4aff5a9270.tar.gz
KVM: introduce KVM_ERR_PTR_BAD_PAGE
It is used to eliminate the overload of function call and cleanup the code 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.c2
-rw-r--r--virt/kvm/kvm_main.c13
2 files changed, 2 insertions, 13 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 79722782d9d..56f55339189 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -203,7 +203,7 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu)
if (!work)
return -ENOMEM;
- work->page = get_bad_page();
+ work->page = KVM_ERR_PTR_BAD_PAGE;
INIT_LIST_HEAD(&work->queue); /* for list_del to work */
spin_lock(&vcpu->async_pf.lock);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index eb73e5f1367..93d3c6e063c 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -922,17 +922,6 @@ void kvm_disable_largepages(void)
}
EXPORT_SYMBOL_GPL(kvm_disable_largepages);
-int is_error_page(struct page *page)
-{
- return IS_ERR(page);
-}
-EXPORT_SYMBOL_GPL(is_error_page);
-
-struct page *get_bad_page(void)
-{
- return ERR_PTR(-ENOENT);
-}
-
static inline unsigned long bad_hva(void)
{
return PAGE_OFFSET;
@@ -1179,7 +1168,7 @@ static struct page *kvm_pfn_to_page(pfn_t pfn)
WARN_ON(kvm_is_mmio_pfn(pfn));
if (is_error_pfn(pfn) || kvm_is_mmio_pfn(pfn))
- return get_bad_page();
+ return KVM_ERR_PTR_BAD_PAGE;
return pfn_to_page(pfn);
}