Ming Lei a1c2f7e7f2 dm: don't stop request queue after the dm device is suspended
For fixing queue quiesce race between driver and block layer(elevator
switch, update nr_requests, ...), we need to support concurrent quiesce
and unquiesce, which requires the two call to be balanced.

__bind() is only called from dm_swap_table() in which dm device has been
suspended already, so not necessary to stop queue again. With this way,
request queue quiesce and unquiesce can be balanced.

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: e70feb8b3e68 ("blk-mq: support concurrent queue quiesce/unquiesce")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Link: https://lore.kernel.org/r/20211021145918.2691762-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-02 08:40:10 -06:00
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