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| author | John Garry <john.garry@huawei.com> | 2020-08-19 23:20:26 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-09-03 15:20:47 -0600 |
| commit | bccf5e26d99c28980bd6ced474422a1b18402263 (patch) | |
| tree | 27af81c6aa730aea28de03b248624a55e6972563 /include | |
| parent | a0235d230f3245aa4bd70b514d5effb24be61acd (diff) | |
| download | linux-stable-bccf5e26d99c28980bd6ced474422a1b18402263.tar.gz linux-stable-bccf5e26d99c28980bd6ced474422a1b18402263.tar.bz2 linux-stable-bccf5e26d99c28980bd6ced474422a1b18402263.zip | |
blk-mq: Record nr_active_requests per queue for when using shared sbitmap
The per-hctx nr_active value can no longer be used to fairly assign a share
of tag depth per request queue for when using a shared sbitmap, as it does
not consider that the tags are shared tags over all hctx's.
For this case, record the nr_active_requests per request_queue, and make
the judgement based on that value.
Co-developed-with: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Don Brace<don.brace@microsemi.com> #SCSI resv cmds patches used
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d0d61bc81615..6277aee2aeaa 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -485,6 +485,8 @@ struct request_queue { struct timer_list timeout; struct work_struct timeout_work; + atomic_t nr_active_requests_shared_sbitmap; + struct list_head icq_list; #ifdef CONFIG_BLK_CGROUP DECLARE_BITMAP (blkcg_pols, BLKCG_MAX_POLS); |