From ca93e45347e61cd85e5d71961f6c94fad143593d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 9 Jun 2016 16:00:35 +0200 Subject: [PATCH] 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 Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 5 ++--- 1 file 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 */ -- 2.20.1