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KVM: introduce KVM_ERR_PTR_BAD_PAGE

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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>
This commit is contained in:
Xiao Guangrong
2012-08-03 15:41:22 +08:00
committed by Avi Kivity
parent 9a592a9538
commit 6cede2e679
3 changed files with 9 additions and 15 deletions
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virt/kvm/async_pf.c
+1 -1
View File
@@ -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);
virt/kvm/kvm_main.c
+1 -12
View File
@@ -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);
}