If shared fence list is not empty, even we want to test all fences, excl fence is ignored. That is abviously wrong, so fix it.
Signed-off-by: xinhui pan xinhui.pan@amd.com --- drivers/dma-buf/dma-resv.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 4264e64788c4..44dc64c547c6 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -632,14 +632,14 @@ static inline int dma_resv_test_signaled_single(struct dma_fence *passed_fence) */ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all) { - unsigned seq, shared_count; + unsigned int seq, shared_count, left; int ret;
rcu_read_lock(); retry: ret = true; shared_count = 0; - seq = read_seqcount_begin(&obj->seq); + left = seq = read_seqcount_begin(&obj->seq);
if (test_all) { unsigned i; @@ -647,7 +647,7 @@ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all) struct dma_resv_list *fobj = rcu_dereference(obj->fence);
if (fobj) - shared_count = fobj->shared_count; + left = shared_count = fobj->shared_count;
for (i = 0; i < shared_count; ++i) { struct dma_fence *fence = rcu_dereference(fobj->shared[i]); @@ -657,13 +657,14 @@ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all) goto retry; else if (!ret) break; + left--; }
if (read_seqcount_retry(&obj->seq, seq)) goto retry; }
- if (!shared_count) { + if (!left) { struct dma_fence *fence_excl = rcu_dereference(obj->fence_excl);
if (fence_excl) {