From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>, Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-nvme@lists.infradead.org
Subject: sorting out the freeze / quiesce mess
Date: Wed, 10 Nov 2021 10:14:07 +0100 [thread overview]
Message-ID: <20211110091407.GA8396@lst.de> (raw)
Hi Jens and Ming,
I've been looking into properly supporting queue freezing for bio based
drivers (that is only release q_usage_counter on bio completion for them).
And the deeper I look into the code the more I'm confused by us having
the blk_mq_quiesce* interface in addition to blk_freeze_queue. What
is a good reason to do a quiesce separately from a freeze?
next reply other threads:[~2021-11-10 9:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-10 9:14 Christoph Hellwig [this message]
2021-11-10 9:29 ` sorting out the freeze / quiesce mess Ming Lei
2021-11-10 9:52 ` Ming Lei
2021-11-10 12:58 ` Christoph Hellwig
2021-11-10 14:56 ` Ming Lei
2021-11-10 10:22 ` Hannes Reinecke
2021-11-10 10:45 ` Ming Lei
2021-11-10 12:32 ` James Bottomley
2021-11-10 13:30 ` Max Gurtovoy
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