[PATCH v13 80/85] KVM: s390: Use kvm_release_page_dirty() to unpin "struct page" memory
From: Sean Christopherson <seanjc@google.com>
Date: 2024-10-10 18:27:42
Also in:
kvm, kvm-riscv, kvmarm, linux-arm-kernel, linux-mips, linux-riscv, lkml, loongarch
Subsystem:
kernel virtual machine for s390 (kvm/s390), s390 architecture, the rest · Maintainers:
Christian Borntraeger, Janosch Frank, Claudio Imbrenda, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds
Use kvm_release_page_dirty() when unpinning guest pages, as the pfn was retrieved via pin_guest_page(), i.e. is guaranteed to be backed by struct page memory. This will allow dropping kvm_release_pfn_dirty() and friends. Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/s390/kvm/vsie.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 763a070f5955..e1fdf83879cf 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c@@ -670,7 +670,7 @@ static int pin_guest_page(struct kvm *kvm, gpa_t gpa, hpa_t *hpa) /* Unpins a page previously pinned via pin_guest_page, marking it as dirty. */ static void unpin_guest_page(struct kvm *kvm, gpa_t gpa, hpa_t hpa) { - kvm_release_pfn_dirty(hpa >> PAGE_SHIFT); + kvm_release_page_dirty(pfn_to_page(hpa >> PAGE_SHIFT)); /* mark the page always as dirty for migration */ mark_page_dirty(kvm, gpa_to_gfn(gpa)); }
--
2.47.0.rc1.288.g06298d1525-goog