diff options
| -rw-r--r-- | arch/powerpc/kvm/44x_tlb.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 4 | ||||
| -rw-r--r-- | arch/x86/kvm/svm.c | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 5 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 9 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 2 | ||||
| -rw-r--r-- | virt/kvm/async_pf.c | 4 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
8 files changed, 12 insertions, 19 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c index 33aa715dab28..5dd3ab469976 100644 --- a/arch/powerpc/kvm/44x_tlb.c +++ b/arch/powerpc/kvm/44x_tlb.c @@ -319,7 +319,6 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, if (is_error_page(new_page)) { printk(KERN_ERR "Couldn't get guest page for gfn %llx!\n", (unsigned long long)gfn); - kvm_release_page_clean(new_page); return; } hpaddr = page_to_phys(new_page); diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index a1baec340f7e..05c28f59f77f 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -242,10 +242,8 @@ static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte) int i; hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT); - if (is_error_page(hpage)) { - kvm_release_page_clean(hpage); + if (is_error_page(hpage)) return; - } hpage_offset = pte->raddr & ~PAGE_MASK; hpage_offset &= ~0xFFFULL; diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 687d0c30e559..31be4a557447 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2105,7 +2105,6 @@ static void *nested_svm_map(struct vcpu_svm *svm, u64 gpa, struct page **_page) return kmap(page); error: - kvm_release_page_clean(page); kvm_inject_gp(&svm->vcpu, 0); return NULL; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index d6e4cbc42b8e..cc8ad9836927 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -596,10 +596,9 @@ static inline struct vmcs12 *get_vmcs12(struct kvm_vcpu *vcpu) static struct page *nested_get_page(struct kvm_vcpu *vcpu, gpa_t addr) { struct page *page = gfn_to_page(vcpu->kvm, addr >> PAGE_SHIFT); - if (is_error_page(page)) { - kvm_release_page_clean(page); + if (is_error_page(page)) return NULL; - } + return page; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ebf2109318e0..7953a9e7cb17 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1639,10 +1639,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) vcpu->arch.time_page = gfn_to_page(vcpu->kvm, data >> PAGE_SHIFT); - if (is_error_page(vcpu->arch.time_page)) { - kvm_release_page_clean(vcpu->arch.time_page); + if (is_error_page(vcpu->arch.time_page)) vcpu->arch.time_page = NULL; - } + break; } case MSR_KVM_ASYNC_PF_EN: @@ -3945,10 +3944,8 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt, goto emul_write; page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT); - if (is_error_page(page)) { - kvm_release_page_clean(page); + if (is_error_page(page)) goto emul_write; - } kaddr = kmap_atomic(page); kaddr += offset_in_page(gpa); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ce7c32950f4e..07226f820e6c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -457,7 +457,7 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn); pfn_t gfn_to_pfn_prot(struct kvm *kvm, gfn_t gfn, bool write_fault, bool *writable); pfn_t gfn_to_pfn_memslot(struct kvm_memory_slot *slot, gfn_t gfn); -void kvm_release_pfn_dirty(pfn_t); +void kvm_release_pfn_dirty(pfn_t pfn); void kvm_release_pfn_clean(pfn_t pfn); void kvm_set_pfn_dirty(pfn_t pfn); void kvm_set_pfn_accessed(pfn_t pfn); diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 56f553391896..ea475cd03511 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -111,7 +111,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) list_entry(vcpu->async_pf.done.next, typeof(*work), link); list_del(&work->link); - if (work->page) + if (!is_error_page(work->page)) kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } @@ -138,7 +138,7 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu) list_del(&work->queue); vcpu->async_pf.queued--; - if (work->page) + if (!is_error_page(work->page)) kvm_release_page_clean(work->page); kmem_cache_free(async_pf_cache, work); } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eafba99d1070..a2e85af847c1 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1186,8 +1186,9 @@ EXPORT_SYMBOL_GPL(gfn_to_page); void kvm_release_page_clean(struct page *page) { - if (!is_error_page(page)) - kvm_release_pfn_clean(page_to_pfn(page)); + WARN_ON(is_error_page(page)); + + kvm_release_pfn_clean(page_to_pfn(page)); } EXPORT_SYMBOL_GPL(kvm_release_page_clean); |