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From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Sagi Grimberg <sagi@grimberg.me>,
	Bart Van Assche <bvanassche@acm.org>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
	Hannes Reinecke <hare@suse.de>, Chao Leng <lengchao@huawei.com>,
	Keith Busch <kbusch@kernel.org>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING
Date: Mon, 14 Sep 2020 11:05:42 +0800	[thread overview]
Message-ID: <20200914030542.GA342981@T590> (raw)
In-Reply-To: <D4DF8CEF-AFFE-4EE1-947F-D9500007C7A0@kernel.dk>

On Fri, Sep 11, 2020 at 01:14:29PM -0600, Jens Axboe wrote:
> 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. 

Actually this patchset doesn't depend on patch of 'percpu_ref & block: reduce memory
footprint of percpu_ref in fast path', and I hold them in one branch, so
causes the conflict.

V6 has been sent out, and just rebase against for-5.10/block directly.

Thanks,
Ming


WARNING: multiple messages have this Message-ID (diff)
From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Sagi Grimberg <sagi@grimberg.me>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
	Hannes Reinecke <hare@suse.de>, Chao Leng <lengchao@huawei.com>,
	Keith Busch <kbusch@kernel.org>, Christoph Hellwig <hch@lst.de>,
	Bart Van Assche <bvanassche@acm.org>
Subject: Re: [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING
Date: Mon, 14 Sep 2020 11:05:42 +0800	[thread overview]
Message-ID: <20200914030542.GA342981@T590> (raw)
In-Reply-To: <D4DF8CEF-AFFE-4EE1-947F-D9500007C7A0@kernel.dk>

On Fri, Sep 11, 2020 at 01:14:29PM -0600, Jens Axboe wrote:
> 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. 

Actually this patchset doesn't depend on patch of 'percpu_ref & block: reduce memory
footprint of percpu_ref in fast path', and I hold them in one branch, so
causes the conflict.

V6 has been sent out, and just rebase against for-5.10/block directly.

Thanks,
Ming


_______________________________________________
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Linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme

  reply	other threads:[~2020-09-14  3:06 UTC|newest]

Thread overview: 30+ 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 ` 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  2:41   ` Ming Lei
2020-09-11  6:03   ` Hannes Reinecke
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   ` Ming Lei
2020-09-11  2:41 ` [PATCH V5 3/4] blk-mq: add tagset quiesce interface Ming Lei
2020-09-11  2:41   ` Ming Lei
2020-09-11  2:41 ` [PATCH V5 4/4] nvme: use blk_mq_[un]quiesce_tagset Ming Lei
2020-09-11  2:41   ` 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 17:29   ` Sagi Grimberg
2020-09-11 18:34   ` Sagi Grimberg
2020-09-11 18:34     ` Sagi Grimberg
2020-09-11 18:45     ` Jens Axboe
2020-09-11 18:45       ` Jens Axboe
2020-09-11 23:28     ` Ming Lei
2020-09-11 23:28       ` Ming Lei
2020-09-11 17:33 ` Keith Busch
2020-09-11 17:33   ` Keith Busch
2020-09-11 18:05 ` Jens Axboe
2020-09-11 18:05   ` Jens Axboe
2020-09-11 19:12   ` Sagi Grimberg
2020-09-11 19:12     ` Sagi Grimberg
2020-09-11 19:14     ` Jens Axboe
2020-09-11 19:14       ` Jens Axboe
2020-09-14  3:05       ` Ming Lei [this message]
2020-09-14  3:05         ` Ming Lei

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