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authorSean Christopherson <seanjc@google.com>2024-10-10 20:23:04 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2024-10-25 18:54:42 +0200
commit85e88b2bbaacb4135499fdb219f78ac38ef6e8d4 (patch)
tree00ae462b93244249f9f7d83690794759437fb2d4 /virt
parentKVM: Drop KVM_ERR_PTR_BAD_PAGE and instead return NULL to indicate an error (diff)
downloadlinux-85e88b2bbaacb4135499fdb219f78ac38ef6e8d4.tar.xz
linux-85e88b2bbaacb4135499fdb219f78ac38ef6e8d4.zip
KVM: Allow calling kvm_release_page_{clean,dirty}() on a NULL page pointer
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>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5fc95504affe..e7561ca96a09 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);