From 85e88b2bbaacb4135499fdb219f78ac38ef6e8d4 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 10 Oct 2024 11:23:04 -0700
Subject: [PATCH] KVM: Allow calling kvm_release_page_{clean,dirty}() on a NULL
page pointer
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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.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-3-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 5fc95504affea..e7561ca96a095 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3167,7 +3167,7 @@ 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);
@@ -3192,7 +3192,7 @@ 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);
--
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