kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

blk-mq: make the sysfs mq/ layout reflect current mappings

Browse source 
Currently blk-mq registers all the hardware queues in sysfs,
regardless of whether it uses them (e.g. they have CPU mappings)
or not. The unused hardware queues lack the cpux/ directories,
and the other sysfs entries (like active, pending, etc) are all
zeroes.

Change this so that sysfs correctly reflects the current mappings
of the hardware queues.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe 2014-05-30 08:25:36 -06:00
parent 2230237500
commit 67aec14ce8
4 changed files with 94 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/blk-mq.h
View file

@ -130,6 +130,7 @@ enum {
BLK_MQ_F_SHOULD_SORT = 1 << 1,
BLK_MQ_F_TAG_SHARED = 1 << 2,
BLK_MQ_F_SG_MERGE = 1 << 3,
BLK_MQ_F_SYSFS_UP = 1 << 4,
BLK_MQ_S_STOPPED = 0,
BLK_MQ_S_TAG_ACTIVE = 1,