dma-fence: Shrink size of struct dma_fence

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@chris-wilson.co.uk>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190817144736.7826-3-chris@chris-wilson.co.uk

1 files 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;
 };