[PATCH 2/2] drm/i915: prefer dma_fence_might_wait in wait_migration

[Matthew Auld]

dma_fence_might_wait is more interesting here, since it also teaches
lockdep about the fence critical section and wait_migration dependency.

Suggested-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_wait.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
index f909aaa09d9c..190e221eaf81 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
@@ -305,7 +305,7 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
 int i915_gem_object_wait_migration(struct drm_i915_gem_object *obj,
 				   unsigned int flags)
 {
-	might_sleep();
+	dma_fence_might_wait();
 	/* NOP for now. */
 	return 0;
 }
-- 
2.26.3