From: Hannes Reinecke <hare@suse.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: Mike Snitzer <snitzer@redhat.com>,
dm-devel-redhat.com@suse.de,
Damien Le Moal <damien.lemoal@hgst.com>,
linux-scsi@vger.kernel.org, linux-block@vger.kernel.org,
Jens Axboe <axboe@fb.com>
Subject: Re: [PATCH 1/3] block: add flag for single-threaded submission
Date: Thu, 21 Jul 2016 08:01:17 +0200 [thread overview]
Message-ID: <2cef3971-54cc-73d6-dbff-acd1379d19d5@suse.de> (raw)
In-Reply-To: <20160721055431.GB14568@infradead.org>
On 07/21/2016 07:54 AM, Christoph Hellwig wrote:
> On Tue, Jul 19, 2016 at 04:02:56PM +0200, Hannes Reinecke wrote:
>> Some devices (most notably SMR drives) support only
>> one I/O stream eg for ensuring ordered I/O submission.
>> This patch adds a new block queue flag
>> 'BLK_QUEUE_SINGLE' to support these devices.
>
> We'll need a blk-mq implementation of this flag as well before it can
> be merged.
>
Yes, indeed. Will be fixed for the next round of submissions.
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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next prev parent reply other threads:[~2016-07-21 6:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 14:02 [PATCH 0/3] dm-zoned target for ZBC devices Hannes Reinecke
2016-07-19 14:02 ` [PATCH 1/3] block: add flag for single-threaded submission Hannes Reinecke
2016-07-20 1:13 ` Damien Le Moal
2016-07-21 5:54 ` Christoph Hellwig
2016-07-21 6:01 ` Hannes Reinecke [this message]
2016-07-21 6:37 ` Hannes Reinecke
2016-07-21 7:10 ` Damien Le Moal
2016-07-21 14:38 ` Christoph Hellwig
2016-07-19 14:02 ` [PATCH 2/3] sd: enable single-threaded I/O submission for zoned devices Hannes Reinecke
2016-07-20 1:15 ` Damien Le Moal
2016-07-19 14:02 ` [PATCH 3/3] dm-zoned: New device mapper target for zoned block devices Hannes Reinecke
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