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From: Ming Lei <tom.leiming@gmail.com>
To: Jens Axboe <axboe@fb.com>,
	linux-block@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>
Cc: Bart Van Assche <bart.vanassche@sandisk.com>,
	Hannes Reinecke <hare@suse.de>, Ming Lei <tom.leiming@gmail.com>
Subject: [PATCH v2 0/4] block: misc changes
Date: Fri, 24 Mar 2017 20:36:17 +0800	[thread overview]
Message-ID: <20170324123621.5227-1-tom.leiming@gmail.com> (raw)

Hi,

The 1st  patch add comments on blk-mq races with timeout handler.

The other 3 patches improves handling for dying queue:
	- the 2nd one adds one barrier in blk_queue_enter() for
	avoiding hanging caused by out-of-order
	- the 3rd and 4th patches block new I/O entering queue
	after queue is set as dying

V1:
	- add comments on races related with timeout handler
	- add Tested-by & Reviewed-by tag

thanks,
Ming

Ming Lei (4):
  blk-mq: comment on races related with timeout handler
  block: add a read barrier in blk_queue_enter()
  block: rename blk_mq_freeze_queue_start()
  block: block new I/O just after queue is set as dying

 block/blk-core.c                  | 12 ++++++++++++
 block/blk-mq.c                    | 32 +++++++++++++++++++++++++++-----
 drivers/block/mtip32xx/mtip32xx.c |  2 +-
 drivers/nvme/host/core.c          |  2 +-
 include/linux/blk-mq.h            |  2 +-
 5 files changed, 42 insertions(+), 8 deletions(-)

-- 
2.9.3

             reply	other threads:[~2017-03-24 12:36 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-24 12:36 Ming Lei [this message]
2017-03-24 12:36 ` [PATCH v2 1/4] blk-mq: comment on races related with timeout handler Ming Lei
2017-03-24 12:36 ` [PATCH v2 2/4] block: add a read barrier in blk_queue_enter() Ming Lei
2017-03-24 15:18   ` Hannes Reinecke
2017-03-24 17:24   ` Bart Van Assche
2017-03-24 17:38     ` Ming Lei
2017-03-24 18:45       ` Bart Van Assche
2017-03-27 11:31         ` Ming Lei
2017-03-24 12:36 ` [PATCH v2 3/4] block: rename blk_mq_freeze_queue_start() Ming Lei
2017-03-24 15:20   ` Hannes Reinecke
2017-03-24 17:29   ` Bart Van Assche
2017-03-24 17:52     ` Ming Lei
2017-03-24 12:36 ` [PATCH v2 4/4] block: block new I/O just after queue is set as dying Ming Lei
2017-03-24 17:45   ` Bart Van Assche

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