mmap locking API: use coccinelle to convert mmap_sem rwsem call sites

[linux-block.git] / virt / kvm / kvm_main.c

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index abdfb01b3e361f3dd857a6bece3415861d203905..0dfee7576e88c1bcee31707aaafe76f5552ada92 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1631,7 +1631,7 @@ unsigned long kvm_host_page_size(struct kvm_vcpu *vcpu, gfn_t gfn)
        if (kvm_is_error_hva(addr))
                return PAGE_SIZE;
 
-       down_read(&current->mm->mmap_sem);
+       mmap_read_lock(current->mm);
        vma = find_vma(current->mm, addr);
        if (!vma)
                goto out;
@@ -1639,7 +1639,7 @@ unsigned long kvm_host_page_size(struct kvm_vcpu *vcpu, gfn_t gfn)
        size = vma_kernel_pagesize(vma);
 
 out:
-       up_read(&current->mm->mmap_sem);
+       mmap_read_unlock(current->mm);
 
        return size;
 }
@@ -1892,7 +1892,7 @@ static kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async,
        if (npages == 1)
                return pfn;
 
-       down_read(&current->mm->mmap_sem);
+       mmap_read_lock(current->mm);
        if (npages == -EHWPOISON ||
              (!async && check_user_page_hwpoison(addr))) {
                pfn = KVM_PFN_ERR_HWPOISON;
@@ -1916,7 +1916,7 @@ retry:
                pfn = KVM_PFN_ERR_FAULT;
        }
 exit:
-       up_read(&current->mm->mmap_sem);
+       mmap_read_unlock(current->mm);
        return pfn;
 }