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From:   Christoph Hellwig <hch@lst.de>
To:     Jens Axboe <axboe@kernel.dk>
Cc:     Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        Jan Kara <jack@suse.cz>, linux-block@vger.kernel.org,
        Ming Lei <ming.lei@redhat.com>
Subject: yet another approach to fix loop autoclear for xfstets xfs/049  v2
Date:   Fri, 28 Jan 2022 14:00:14 +0100
Message-Id: <20220128130022.1750906-1-hch@lst.de>
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Hi Jens, hi Tetsuo,

this series uses the approach from Tetsuo to delay the destroy_workueue
cll, extended by a delayed teardown of the workers to fix a potential
racewindow then the workqueue can be still round after finishing the
commands.  It then also removed the queue freeing in release that is
not needed to fix the dependency chain for that (which can't be
reported by lockdep) as well.

Changes since v1:
 - add comments to document the lo_refcnt synchronization
 - fix comment typos