[PATCH 09/27] drm/i915/gem: Make eb_add_lut interruptible wait on object lock.

[Maarten Lankhorst]

The lock here should be interruptible, so we can backoff if needed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 2636a130fb57..aa441af81431 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -774,7 +774,12 @@ static int __eb_add_lut(struct i915_execbuffer *eb,
 		if (err == 0) { /* And nor has this handle */
 			struct drm_i915_gem_object *obj = vma->obj;
 
-			i915_gem_object_lock(obj, NULL);
+			err = i915_gem_object_lock_interruptible(obj, NULL);
+			if (err) {
+				radix_tree_delete(&ctx->handles_vma, handle);
+				goto unlock;
+			}
+
 			if (idr_find(&eb->file->object_idr, handle) == obj) {
 				list_add(&lut->obj_link, &obj->lut_list);
 			} else {
@@ -783,6 +788,7 @@ static int __eb_add_lut(struct i915_execbuffer *eb,
 			}
 			i915_gem_object_unlock(obj);
 		}
+unlock:
 		mutex_unlock(&ctx->mutex);
 	}
 	if (unlikely(err))
-- 
2.27.0