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* [PATCH v3 0/4] block: misc changes
@ 2017-03-27 12:06 Ming Lei
  2017-03-27 12:06 ` [PATCH v3 1/4] blk-mq: comment on races related with timeout handler Ming Lei
                   ` (4 more replies)
  0 siblings, 5 replies; 13+ messages in thread
From: Ming Lei @ 2017-03-27 12:06 UTC (permalink / raw)
  To: Jens Axboe, linux-block, Christoph Hellwig
  Cc: Bart Van Assche, Hannes Reinecke, Ming Lei

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

^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2017-03-29 14:00 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-03-27 12:06 [PATCH v3 0/4] block: misc changes Ming Lei
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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