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| author | Guoqing Jiang <guoqing.jiang@linux.dev> | 2022-07-06 16:31:49 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-08-03 02:14:45 +0300 |
| commit | 59f070de125f568fb7ba47b6555b4013e30f28fd (patch) | |
| tree | 11ebb2c84a695e07ad4c607763a718407a139f07 | |
| parent | dfc270c908e81f586c1165acbd9bc5c6d18c3fc0 (diff) | |
| download | linux-59f070de125f568fb7ba47b6555b4013e30f28fd.tar.xz | |
rnbd-clt: adjust the layout of struct rnbd_clt_dev
While at it, let re-arrange the struct to remove holes.
Before, pahole reports
/* size: 232, cachelines: 4, members: 17 */
/* sum members: 224, holes: 2, sum holes: 8 */
/* last cacheline: 40 bytes */
After the change, the report changes to
/* size: 224, cachelines: 4, members: 17 */
/* last cacheline: 32 bytes */
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20220706133152.12058-6-guoqing.jiang@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/rnbd/rnbd-clt.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/rnbd/rnbd-clt.h b/drivers/block/rnbd/rnbd-clt.h index 7520272541b1..df237d2ea0d9 100644 --- a/drivers/block/rnbd/rnbd-clt.h +++ b/drivers/block/rnbd/rnbd-clt.h @@ -106,6 +106,7 @@ struct rnbd_queue { }; struct rnbd_clt_dev { + struct kobject kobj; struct rnbd_clt_session *sess; struct request_queue *queue; struct rnbd_queue *hw_queues; @@ -114,15 +115,14 @@ struct rnbd_clt_dev { u32 clt_device_id; struct mutex lock; enum rnbd_clt_dev_state dev_state; + refcount_t refcount; char *pathname; enum rnbd_access_mode access_mode; u32 nr_poll_queues; u64 size; /* device size in bytes */ struct list_head list; struct gendisk *gd; - struct kobject kobj; char *blk_symlink_name; - refcount_t refcount; struct work_struct unmap_on_rmmod_work; }; |