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

[linux-2.6-microblaze.git] / drivers / vhost / vdpa.c

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 0968361..40e2a57 100644 (file)
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -527,7 +527,7 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v,
        if (!npages)
                return -EINVAL;
 
-       down_read(&dev->mm->mmap_sem);
+       mmap_read_lock(dev->mm);
 
        locked = atomic64_add_return(npages, &dev->mm->pinned_vm);
        lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
@@ -580,7 +580,7 @@ out:
                vhost_vdpa_unmap(v, msg->iova, msg->size);
                atomic64_sub(npages, &dev->mm->pinned_vm);
        }
-       up_read(&dev->mm->mmap_sem);
+       mmap_read_unlock(dev->mm);
        free_page((unsigned long)page_list);
        return ret;
 }