Instead of open coding the sequence loop use the new helper.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_busy.c | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_busy.c b/drivers/gpu/drm/i915/gem/i915_gem_busy.c
index 6ad93a09968c..8473292096cb 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_busy.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_busy.c
@@ -83,7 +83,8 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_i915_gem_busy *args = data;
struct drm_i915_gem_object *obj;
struct reservation_object_list *list;
- unsigned int seq;
+ unsigned int i, shared_count;
+ struct dma_fence *excl;
int err;
err = -ENOENT;
@@ -109,29 +110,18 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
* to report the overall busyness. This is what the wait-ioctl does.
*
*/
-retry:
- seq = raw_read_seqcount(&obj->base.resv->seq);
+ reservation_object_fences(obj->base.resv, &excl, &list, &shared_count);
/* Translate the exclusive fence to the READ *and* WRITE engine */
- args->busy =
- busy_check_writer(rcu_dereference(obj->base.resv->fence_excl));
+ args->busy = busy_check_writer(excl);
/* Translate shared fences to READ set of engines */
- list = rcu_dereference(obj->base.resv->fence);
- if (list) {
- unsigned int shared_count = list->shared_count, i;
+ for (i = 0; i < shared_count; ++i) {
+ struct dma_fence *fence = rcu_dereference(list->shared[i]);
- for (i = 0; i < shared_count; ++i) {
- struct dma_fence *fence =
- rcu_dereference(list->shared[i]);
-
- args->busy |= busy_check_reader(fence);
- }
+ args->busy |= busy_check_reader(fence);
}
- if (args->busy && read_seqcount_retry(&obj->base.resv->seq, seq))
- goto retry;
-
err = 0;
out:
rcu_read_unlock();
--
2.17.1
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