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dma-buf/fence: fix fence_is_later v2
A fence is never later than itself. This caused a bunch of overhead for AMDGPU. v2: simplify check as suggested by Michel. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -292,7 +292,7 @@ static inline bool fence_is_later(struct fence *f1, struct fence *f2)
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if (WARN_ON(f1->context != f2->context))
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return false;
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return f1->seqno - f2->seqno < INT_MAX;
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return (int)(f1->seqno - f2->seqno) > 0;
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}
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/**
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