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From: Christoph Hellwig <hch@lst.de>
To: Keith Busch <keith.busch@intel.com>
Cc: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
	Jens Axboe <axboe@kernel.dk>,
	Martin Petersen <martin.petersen@oracle.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCHv4 3/3] blk-mq: Simplify request completion state
Date: Mon, 26 Nov 2018 18:01:11 +0100	[thread overview]
Message-ID: <20181126170111.GC11848@lst.de> (raw)
In-Reply-To: <20181126165430.4519-4-keith.busch@intel.com>

On Mon, Nov 26, 2018 at 09:54:30AM -0700, Keith Busch wrote:
> There are no more users relying on blk-mq request states to prevent
> double completions, so replace the relatively expensive cmpxchg operation
> with WRITE_ONCE.
> 
> Signed-off-by: Keith Busch <keith.busch@intel.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>

  reply	other threads:[~2018-11-26 17:01 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-26 16:54 [PATCHv4 0/3] scsi timeout handling updates Keith Busch
2018-11-26 16:54 ` [PATCHv4 1/3] blk-mq: Return true if request was completed Keith Busch
2018-11-26 17:00   ` Christoph Hellwig
2018-11-26 16:54 ` [PATCHv4 2/3] scsi: Do not rely on blk-mq for double completions Keith Busch
2018-11-26 17:01   ` Christoph Hellwig
2018-11-26 16:54 ` [PATCHv4 3/3] blk-mq: Simplify request completion state Keith Busch
2018-11-26 17:01   ` Christoph Hellwig [this message]
2018-11-26 17:33 ` [PATCHv4 0/3] scsi timeout handling updates Jens Axboe
2018-11-28  2:20   ` Ming Lei
2018-11-28  7:00     ` Christoph Hellwig
2018-11-28 10:07       ` Ming Lei
2018-11-28 10:08         ` Christoph Hellwig
2018-11-28 15:49           ` Keith Busch
2018-11-28 15:58             ` Jens Axboe
2018-11-28 16:26               ` Keith Busch
2018-11-28 16:31                 ` Jens Axboe
2018-11-28 17:56                 ` Keith Busch
2018-11-29  1:18                   ` Ming Lei
2018-11-28 22:31                 ` Keith Busch
2018-11-28 23:36                   ` Keith Busch
2018-11-29 17:11                     ` Christoph Hellwig
2018-11-29 17:20                       ` Keith Busch
2018-12-28 12:47                         ` Hannes Reinecke
2018-11-29  2:15           ` Ming Lei
2018-11-29  2:39             ` Martin K. Petersen
2018-11-29  8:12               ` Ming Lei

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