[PATCH v12 04/84] KVM: Allow calling kvm_release_page_{clean,dirty}() on a NULL page pointer

Sean Christopherson
2024-07-27T01:01:09Z

Allow passing a NULL @page to kvm_release_page_{clean,dirty}(), there's no
tangible benefit to forcing the callers to pre-check @page, and it ends up
generating a lot of duplicate boilerplate code.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
virt/kvm/kvm_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index fd8c212b8de7..656e931ac39e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3186,7 +3186,7 @@ static void kvm_set_page_accessed(struct page *page)

void kvm_release_page_clean(struct page *page)
{
- if (WARN_ON(!page))
+ if (!page)
return;

kvm_set_page_accessed(page);
@@ -3211,7 +3211,7 @@ EXPORT_SYMBOL_GPL(kvm_release_pfn_clean);

void kvm_release_page_dirty(struct page *page)
{
- if (WARN_ON(!page))
+ if (!page)
return;

kvm_set_page_dirty(page);