[PATCH v12 04/84] KVM: Allow calling kvm_release_page_{clean,dirty}() on a NULL page pointer
From: Sean Christopherson <seanjc@google.com>
Date: 2024-07-26 23:52:46
Also in:
kvm, kvm-riscv, kvmarm, linux-mips, linux-riscv, linuxppc-dev, lkml, loongarch
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
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);
--
2.46.0.rc1.232.g9752f9e123-goog