diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-05-06 12:12:45 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-05-09 08:43:49 -0600 |
| commit | af76e555e5e29e08eb8ac1f7878e23dbf0d6741f (patch) | |
| tree | f583d3360eebfb37413f5e8e350c146bac591ada /include/linux/blkdev.h | |
| parent | 9fccfed8f0cad9b79575a87c45d6f5f6ee05bb66 (diff) | |
| download | talos-op-linux-af76e555e5e29e08eb8ac1f7878e23dbf0d6741f.tar.gz talos-op-linux-af76e555e5e29e08eb8ac1f7878e23dbf0d6741f.zip | |
blk-mq: initialize struct request fields individually
This allows us to avoid a non-atomic memset over ->atomic_flags as well
as killing lots of duplicate initializations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 20b26d4e53a2..94b27210641b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -90,9 +90,10 @@ enum rq_cmd_type_bits { #define BLK_MAX_CDB 16 /* - * try to put the fields that are referenced together in the same cacheline. - * if you modify this structure, be sure to check block/blk-core.c:blk_rq_init() - * as well! + * Try to put the fields that are referenced together in the same cacheline. + * + * If you modify this structure, make sure to update blk_rq_init() and + * especially blk_mq_rq_ctx_init() to take care of the added fields. */ struct request { struct list_head queuelist; |
