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| author | Christoph Hellwig <hch@lst.de> | 2016-06-09 16:00:35 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-06-09 09:52:09 -0600 |
| commit | ca93e45347e61cd85e5d71961f6c94fad143593d (patch) | |
| tree | 3442c134a3df80889ab50b7ff6e782e29c557ff3 | |
| parent | 60a40096a3b289c28429221c12a5a6890350d919 (diff) | |
| download | linux-ca93e45347e61cd85e5d71961f6c94fad143593d.tar.gz | |
block: better packing for struct request
Keep the 32-bit CPU and cmd_type flags together to avoid holes on 64-bit architectures. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | include/linux/blkdev.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 0c9f8793c87e..9746d223494c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -96,12 +96,11 @@ struct request { struct request_queue *q; struct blk_mq_ctx *mq_ctx; - u64 cmd_flags; + int cpu; unsigned cmd_type; + u64 cmd_flags; unsigned long atomic_flags; - int cpu; - /* the following two fields are internal, NEVER access directly */ unsigned int __data_len; /* total data len */ sector_t __sector; /* sector cursor */ |