tree cfecaf05ddb52c19550291145e7b7bb087744ffd
parent 8e141f9eb803e209714a80aa6ec073893f94c526
author Christoph Hellwig <hch@lst.de> 1632899561 +0200
committer Jens Axboe <axboe@kernel.dk> 1634353374 -0600

block: keep q_usage_counter in atomic mode after del_gendisk

Don't switch back to percpu mode to avoid the double RCU grace period
when tearing down SCSI devices.  After removing the disk only passthrough
commands can be send anyway.

Suggested-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20210929071241.934472-6-hch@lst.de
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>