apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

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
block/blk-mq.c
+4
View File
@@ -1924,6 +1924,8 @@ static void blk_mq_queue_reinit(struct request_queue *q)
{
blk_mq_freeze_queue(q);
blk_mq_sysfs_unregister(q);
blk_mq_update_queue_map(q->mq_map, q->nr_hw_queues);
/*
@@ -1934,6 +1936,8 @@ static void blk_mq_queue_reinit(struct request_queue *q)
blk_mq_map_swqueue(q);
blk_mq_sysfs_register(q);
blk_mq_unfreeze_queue(q);
}