From: Jens Axboe <axboe@kernel.dk>
To: Sagi Grimberg <sagi@grimberg.me>
Cc: Ming Lei <ming.lei@redhat.com>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
Christoph Hellwig <hch@lst.de>, Keith Busch <kbusch@kernel.org>,
Hannes Reinecke <hare@suse.de>,
Bart Van Assche <bvanassche@acm.org>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Chao Leng <lengchao@huawei.com>
Subject: Re: [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING
Date: Fri, 11 Sep 2020 13:14:29 -0600 [thread overview]
Message-ID: <D4DF8CEF-AFFE-4EE1-947F-D9500007C7A0@kernel.dk> (raw)
In-Reply-To: <e517d3c4-86de-95bd-2013-d59eb48ba789@grimberg.me>
On Sep 11, 2020, at 1:12 PM, Sagi Grimberg <sagi@grimberg.me> wrote:
>
>
>>> Hi Jens,
>>>
>>> The 1st patch add .mq_quiesce_mutex for serializing quiesce/unquiesce,
>>> and prepares for replacing srcu with percpu_ref.
>>>
>>> The 2nd patch replaces srcu with percpu_ref.
>>>
>>> The 3rd patch adds tagset quiesce interface.
>>>
>>> The 4th patch applies tagset quiesce interface for NVMe subsystem.
>> What is this series against?
>
> It didn't apply cleanly to me too until I realized it is
> on top of v4 of: "percpu_ref & block: reduce memory footprint of percpu_ref in fast path"
Right, and that’s what has the leak issue you found. I’ll hold off on this one until that’s sorted.
next prev parent reply other threads:[~2020-09-11 19:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 2:41 [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING Ming Lei
2020-09-11 2:41 ` [PATCH V5 1/4] block: use test_and_{clear|test}_bit to set/clear QUEUE_FLAG_QUIESCED Ming Lei
2020-09-11 6:03 ` Hannes Reinecke
2020-09-11 2:41 ` [PATCH V5 2/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING Ming Lei
2020-09-11 2:41 ` [PATCH V5 3/4] blk-mq: add tagset quiesce interface Ming Lei
2020-09-11 2:41 ` [PATCH V5 4/4] nvme: use blk_mq_[un]quiesce_tagset Ming Lei
2020-09-11 17:29 ` [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING Sagi Grimberg
2020-09-11 18:34 ` Sagi Grimberg
2020-09-11 18:45 ` Jens Axboe
2020-09-11 23:28 ` Ming Lei
2020-09-11 17:33 ` Keith Busch
2020-09-11 18:05 ` Jens Axboe
2020-09-11 19:12 ` Sagi Grimberg
2020-09-11 19:14 ` Jens Axboe [this message]
2020-09-14 3:05 ` Ming Lei
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