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KVM: use vma_pages() helper

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Use vma_pages function on vma object instead of explicit computation.

Fix the following coccicheck warning:
./virt/kvm/kvm_main.c:3526:29-35: WARNING: Consider using vma_pages
helper on vma

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Message-Id: <1632900526-119643-1-git-send-email-yang.lee@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Yang Li 2021-09-29 15:28:46 +08:00 committed by Paolo Bonzini
parent feb3162f9d
commit 11476d277e
1 changed files with 1 additions and 1 deletions
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2
virt/kvm/kvm_main.c
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@ -3523,7 +3523,7 @@ static const struct vm_operations_struct kvm_vcpu_vm_ops = {
static int kvm_vcpu_mmap(struct file *file, struct vm_area_struct *vma)
{
struct kvm_vcpu *vcpu = file->private_data;
unsigned long pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
unsigned long pages = vma_pages(vma);
if ((kvm_page_in_dirty_ring(vcpu->kvm, vma->vm_pgoff) ||
kvm_page_in_dirty_ring(vcpu->kvm, vma->vm_pgoff + pages - 1)) &&