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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-17 15:47:33 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-17 18:02:49 +0100 |
| commit | 4fe3997a68f3300c73adc196ff33a952febe6974 (patch) | |
| tree | a8c36eec0c0fc60acb242bf071c18b33b4bbb6c8 /include/linux/dma-fence.h | |
| parent | drm/panel: tpo-td043mtea1: remove redundant assignment (diff) | |
| download | wireguard-linux-4fe3997a68f3300c73adc196ff33a952febe6974.tar.xz wireguard-linux-4fe3997a68f3300c73adc196ff33a952febe6974.zip | |
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
Diffstat (limited to 'include/linux/dma-fence.h')
| -rw-r--r-- | include/linux/dma-fence.h | 6 |
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; }; |