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| author | yangerkun <yangerkun@huawei.com> | 2020-09-19 05:54:25 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-09-29 16:11:00 +0200 |
| commit | 76cffccd606acffde1b91e8b029b39b5fd1a3117 (patch) | |
| tree | 67bbb2d9c523f52e45957443fc03e87a05a1927d /fs/super.c | |
| parent | blk-mq: add cond_resched() in __blk_mq_alloc_rq_maps() (diff) | |
| download | linux-76cffccd606acffde1b91e8b029b39b5fd1a3117.tar.xz linux-76cffccd606acffde1b91e8b029b39b5fd1a3117.zip | |
block-mq: fix comments in blk_mq_queue_tag_busy_iter
'f5bbbbe4d635 ("blk-mq: sync the update nr_hw_queues with
blk_mq_queue_tag_busy_iter")' introduce a bug what we may sleep between
rcu lock. Then '530ca2c9bd69 ("blk-mq: Allow blocking queue tag iter
callbacks")' fix it by get request_queue's ref. And 'a9a808084d6a ("block:
Remove the synchronize_rcu() call from __blk_mq_update_nr_hw_queues()")'
remove the synchronize_rcu in __blk_mq_update_nr_hw_queues. We need
update the confused comments in blk_mq_queue_tag_busy_iter.
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/super.c')
0 files changed, 0 insertions, 0 deletions