[PATCH] dma-buf: make dma_fence structure a bit smaller

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The ruc and cb_list are never used at the same time.
This smal change is actually making the structure 16% smaller.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
 include/linux/dma-fence.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index 05d29dbc7e62..3985c72cd0c2 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -65,8 +65,10 @@ struct dma_fence_cb;
 struct dma_fence {
 	struct kref refcount;
 	const struct dma_fence_ops *ops;
-	struct rcu_head rcu;
-	struct list_head cb_list;
+	union {
+		struct rcu_head rcu;
+		struct list_head cb_list;
+	};
 	spinlock_t *lock;
 	u64 context;
 	u64 seqno;
-- 
2.17.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx




[Index of Archives]     [AMD Graphics]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux