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drm/ttm: remove nonsense wait in ttm_bo_cleanup_refs_and_unlock 

With shared reservation objects the assumption that no fence
could have been added isn't true any more.

Additional to that the BO is about to be destroyed, so removing the
fences now has no advantage whatsoever.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-07-26 14:59:10 +02:00 committed by Alex Deucher
parent 8824c751eb
commit 1a33860d63
1 changed files with 0 additions and 7 deletions
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7
drivers/gpu/drm/ttm/ttm_bo.c
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@ -505,13 +505,6 @@ static int ttm_bo_cleanup_refs_and_unlock(struct ttm_buffer_object *bo,
spin_unlock(&glob->lru_lock);
return 0;
}
/*
* remove sync_obj with ttm_bo_wait, the wait should be
* finished, and no new wait object should have been added.
*/
ret = ttm_bo_wait(bo, false, true);
WARN_ON(ret);
}
if (ret || unlikely(list_empty(&bo->ddestroy))) {