[PATCH] drm/amdgpu: save list length when fence is signaled

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> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Chunming Zhou
> Sent: Sunday, August 13, 2017 9:57 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Zhou, David(ChunMing)
> Subject: [PATCH] drm/amdgpu: save list length when fence is signaled
> 
> Change-Id: I4cc1283f926a523ab57f5cb09f8b58906358b552
> Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
> Reviewed-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> index 15f53234..287e59e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
> @@ -273,6 +273,12 @@ struct dma_fence
> *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
>  		struct dma_fence *f = e->fence;
>  		struct amd_sched_fence *s_fence =
> to_amd_sched_fence(f);
> 
> +		if (dma_fence_is_signaled(f)) {
> +			hash_del(&e->node);
> +			dma_fence_put(f);
> +			kmem_cache_free(amdgpu_sync_slab, e);
> +			continue;
> +		}
>  		if (ring && s_fence) {
>  			/* For fences from the same ring it is sufficient
>  			 * when they are scheduled.
> @@ -285,13 +291,6 @@ struct dma_fence
> *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
>  			}
>  		}
> 
> -		if (dma_fence_is_signaled(f)) {
> -			hash_del(&e->node);
> -			dma_fence_put(f);
> -			kmem_cache_free(amdgpu_sync_slab, e);
> -			continue;
> -		}
> -
>  		return f;
>  	}
> 
> --
> 1.9.1
> 
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> amd-gfx at lists.freedesktop.org
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