Rearrange the couple of 32-bit atomics hidden amongst the field of
pointers that unnecessarily caused the compiler to insert some padding,
shrinks the size of the base struct dma_fence from 80 to 72 bytes on
x86-64.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
include/linux/dma-fence.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index 404aa748eda6..2ce4d877d33e 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -63,7 +63,7 @@ struct dma_fence_cb;
* been completed, or never called at all.
*/
struct dma_fence {
- struct kref refcount;
+ spinlock_t *lock;
const struct dma_fence_ops *ops;
/* We clear the callback list on kref_put so that by the time we
* release the fence it is unused. No one should be adding to the cb_list
@@ -73,11 +73,11 @@ struct dma_fence {
struct rcu_head rcu;
struct list_head cb_list;
};
- spinlock_t *lock;
u64 context;
u64 seqno;
- unsigned long flags;
ktime_t timestamp;
+ unsigned long flags;
+ struct kref refcount;
int error;
};
--
2.23.0.rc1
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