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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Damien Le Moal <damien.lemoal@wdc.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
	Bart Van Assche <bart.vanassche@wdc.com>,
	"James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
	linux-scsi@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
	Hannes Reinecke <hare@suse.com>,
	Johannes Thumshirn <jthumshirn@suse.de>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Brian King <brking@linux.vnet.ibm.com>,
	Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH] Revert "scsi-mq: Always unprepare before requeuing a request"
Date: Wed, 16 Aug 2017 20:52:55 -0400	[thread overview]
Message-ID: <yq18tijow0o.fsf@oracle.com> (raw)
In-Reply-To: <3401ef29-7450-eb15-9dd1-2f021354286d@wdc.com> (Damien Le Moal's message of "Thu, 17 Aug 2017 09:45:44 +0900")


Damien,

> Actually, we can keep that commit as it makes the sq case cleaner
> anyway. But we need something else to prevent deadlock in the mq
> case...

OK, put it back.

Please send a lockout patch. We can always zap it if we find out what
went wrong with Bart's patch and queue a "real" fix.

-- 
Martin K. Petersen	Oracle Linux Engineering

  reply	other threads:[~2017-08-17  0:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-16 17:43 [PATCH] Revert "scsi-mq: Always unprepare before requeuing a request" Bart Van Assche
2017-08-17  0:11 ` Martin K. Petersen
2017-08-17  0:41   ` Damien Le Moal
2017-08-17  0:45     ` Damien Le Moal
2017-08-17  0:52       ` Martin K. Petersen [this message]
2017-08-17  1:29         ` Bart Van Assche
2017-08-17  2:00           ` Martin K. Petersen
2017-08-17  2:00             ` Martin K. Petersen
2017-08-17  2:41             ` Bart Van Assche
2017-08-17  2:51               ` Martin K. Petersen
2017-08-17  2:51                 ` Martin K. Petersen
2017-08-17 15:29                 ` Bart Van Assche
2017-08-17 16:45                   ` Martin K. Petersen
2017-08-17 16:45                     ` Martin K. Petersen
2017-08-17 17:40                     ` Brian King
2017-08-17 17:48                       ` Martin K. Petersen
2017-08-17 17:48                         ` Martin K. Petersen
2017-08-18 12:06                   ` Michael Ellerman
2017-08-18 12:06                     ` Michael Ellerman
2017-08-17  0:46     ` Martin K. Petersen

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