How is this different from just calling with no_wait == false?
As far as I can tell, both paths end up with the same result..
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxx>
diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index 3f48a46..4e7b596 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -82,22 +82,6 @@ static void ttm_eu_list_ref_sub(struct list_head *list)
}
}
-static int ttm_eu_wait_unreserved_locked(struct list_head *list,
- struct ttm_buffer_object *bo)
-{
- struct ttm_bo_global *glob = bo->glob;
- int ret;
-
- ttm_eu_del_from_lru_locked(list);
- spin_unlock(&glob->lru_lock);
- ret = ttm_bo_wait_unreserved(bo, true);
- spin_lock(&glob->lru_lock);
- if (unlikely(ret != 0))
- ttm_eu_backoff_reservation_locked(list);
- return ret;
-}
-
-
void ttm_eu_backoff_reservation(struct list_head *list)
{
struct ttm_validate_buffer *entry;
@@ -152,19 +136,10 @@ retry:
list_for_each_entry(entry, list, head) {
struct ttm_buffer_object *bo = entry->bo;
-retry_this_bo:
- ret = ttm_bo_reserve_locked(bo, true, true, true, val_seq);
+ ret = ttm_bo_reserve_locked(bo, true, false, true, val_seq);
switch (ret) {
case 0:
break;
- case -EBUSY:
- ret = ttm_eu_wait_unreserved_locked(list, bo);
- if (unlikely(ret != 0)) {
- spin_unlock(&glob->lru_lock);
- ttm_eu_list_ref_sub(list);
- return ret;
- }
- goto retry_this_bo;
case -EAGAIN:
ttm_eu_backoff_reservation_locked(list);
spin_unlock(&glob->lru_lock);
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