From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
Christoph Hellwig <hch@lst.de>, Keith Busch <kbusch@kernel.org>
Cc: Sagi Grimberg <sagi@grimberg.me>,
Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
Ming Lei <ming.lei@redhat.com>, Hannes Reinecke <hare@suse.de>,
Chao Leng <lengchao@huawei.com>,
Bart Van Assche <bvanassche@acm.org>
Subject: [PATCH V5 0/4] blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING
Date: Fri, 11 Sep 2020 10:41:13 +0800 [thread overview]
Message-ID: <20200911024117.62480-1-ming.lei@redhat.com> (raw)
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.
V5:
- warn once in case that driver unquiesces its queue being
quiesce and not done, only patch 2 is modified
V4:
- remove .mq_quiesce_mutex, and switch to test_and_[set|clear] for
avoiding duplicated quiesce action
- pass blktests(block, nvme)
V3:
- add tagset quiesce interface
- apply tagset quiesce interface for NVMe
- pass blktests(block, nvme)
V2:
- add .mq_quiesce_lock
- add comment on patch 2 wrt. handling hctx_lock() failure
- trivial patch style change
Ming Lei (3):
block: use test_and_{clear|test}_bit to set/clear QUEUE_FLAG_QUIESCED
blk-mq: implement queue quiesce via percpu_ref for BLK_MQ_F_BLOCKING
blk-mq: add tagset quiesce interface
Sagi Grimberg (1):
nvme: use blk_mq_[un]quiesce_tagset
block/blk-core.c | 13 +++
block/blk-mq-sysfs.c | 2 -
block/blk-mq.c | 182 +++++++++++++++++++++++++--------------
block/blk-sysfs.c | 6 +-
block/blk.h | 2 +
drivers/nvme/host/core.c | 19 ++--
include/linux/blk-mq.h | 10 +--
include/linux/blkdev.h | 4 +
8 files changed, 154 insertions(+), 84 deletions(-)
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
Cc: Chao Leng <lengchao@huawei.com>
--
2.25.2
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next reply other threads:[~2020-09-11 2:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 2:41 Ming Lei [this message]
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
2020-09-14 3:05 ` Ming Lei
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