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 v3 0/4] block: misc changes
Date: Mon, 27 Mar 2017 20:06:54 +0800 [thread overview]
Message-ID: <20170327120658.29864-1-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
V3:
- tweak comments as suggested by Bart Van Assche
V2:
- add one missing barrier in blk_queue_enter()
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 | 16 ++++++++++++++++
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, 46 insertions(+), 8 deletions(-)
--
2.9.3
next reply other threads:[~2017-03-27 12:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-27 12:06 Ming Lei [this message]
2017-03-27 12:06 ` [PATCH v3 1/4] blk-mq: comment on races related with timeout handler Ming Lei
2017-03-27 12:11 ` Johannes Thumshirn
2017-03-27 12:06 ` [PATCH v3 2/4] block: add a read barrier in blk_queue_enter() Ming Lei
2017-03-27 12:14 ` Johannes Thumshirn
2017-03-27 15:44 ` Bart Van Assche
2017-03-27 12:06 ` [PATCH v3 3/4] block: rename blk_mq_freeze_queue_start() Ming Lei
2017-03-27 12:15 ` Johannes Thumshirn
2017-03-27 12:06 ` [PATCH v3 4/4] block: block new I/O just after queue is set as dying Ming Lei
2017-03-27 12:16 ` Johannes Thumshirn
2017-03-27 15:49 ` Bart Van Assche
2017-03-29 2:11 ` [PATCH v3 0/4] block: misc changes Ming Lei
2017-03-29 14:00 ` Jens Axboe
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