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

[mirror_ubuntu-kernels.git] / drivers / gpu / drm / radeon / radeon_gem.c

diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 068c3e5da1738ccd4e0ab945a8bf775f647b427b..3c8f570a20ee4b503741b495a5ec5ddfe3420569 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -342,17 +342,17 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data,
        }
 
        if (args->flags & RADEON_GEM_USERPTR_VALIDATE) {
-               down_read(&current->mm->mmap_sem);
+               mmap_read_lock(current->mm);
                r = radeon_bo_reserve(bo, true);
                if (r) {
-                       up_read(&current->mm->mmap_sem);
+                       mmap_read_unlock(current->mm);
                        goto release_object;
                }
 
                radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_GTT);
                r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
                radeon_bo_unreserve(bo);
-               up_read(&current->mm->mmap_sem);
+               mmap_read_unlock(current->mm);
                if (r)
                        goto release_object;
        }