From: axboe@kernel.dk (Jens Axboe)
Subject: [PATCH 9/9] nvme: add support for streams and directives
Date: Tue, 27 Jun 2017 08:56:34 -0600 [thread overview]
Message-ID: <b9bd5753-453d-0952-b4a7-cddd4715b933@kernel.dk> (raw)
In-Reply-To: <cd3cc640-5eb2-aeaf-a3a9-904436faae77@kernel.dk>
On 06/27/2017 08:46 AM, Jens Axboe wrote:
> On 06/27/2017 08:44 AM, Christoph Hellwig wrote:
>> On Tue, Jun 27, 2017@08:16:49AM -0600, Jens Axboe wrote:
>>> But we have to handle it, not doing so would be fragile. So our
>>> options are:
>>>
>>> 1) Keep the stream_mappings[] array. It's simple, and it'll work
>>> for any number of streams.
>>>
>>> 2) Kill stream_mappings[] and just do the MOD again.
>>
>> 3) print a message and tell streams aren't supported on this device.
>
> Is that your nvme preference - if less than 4 streams, just ignore it?
> Would seem a shame to lose out with 2 streams, I can think of several
> hot/cold scenarios that would probably work fine with that. But at the
> same time, not a big deal to me, if you prefer just turning it off
> for < 4 streams, that's fine with me.
http://git.kernel.dk/cgit/linux-block/commit/?h=write-stream&id=98335ae1347a9a08adc831e77e8fefcf06ab8282
--
Jens Axboe
next prev parent reply other threads:[~2017-06-27 14:56 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 0:21 [PATCHSET v9] Add support for write life time hints Jens Axboe
2017-06-21 0:21 ` [PATCH 1/9] fs: add fcntl() interface for setting/getting " Jens Axboe
2017-06-26 9:51 ` Christoph Hellwig
2017-06-26 13:55 ` Jens Axboe
2017-06-26 16:09 ` Darrick J. Wong
2017-06-26 16:29 ` Jens Axboe
2017-06-21 0:21 ` [PATCH 2/9] block: add support for write hints in a bio Jens Axboe
2017-06-26 9:52 ` Christoph Hellwig
2017-06-21 0:22 ` [PATCH 3/9] blk-mq: expose stream write hints through debugfs Jens Axboe
2017-06-26 9:52 ` Christoph Hellwig
2017-06-21 0:22 ` [PATCH 4/9] fs: add O_DIRECT support for sending down write life time hints Jens Axboe
2017-06-26 9:55 ` Christoph Hellwig
2017-06-26 14:12 ` Jens Axboe
2017-06-21 0:22 ` [PATCH 5/9] fs: add support for buffered writeback to pass down write hints Jens Axboe
2017-06-21 0:22 ` [PATCH 6/9] ext4: add support for passing in write hints for buffered writes Jens Axboe
2017-06-21 0:22 ` [PATCH 7/9] xfs: " Jens Axboe
2017-06-21 1:35 ` Darrick J. Wong
2017-06-21 1:46 ` Jens Axboe
2017-06-26 9:56 ` Christoph Hellwig
2017-06-26 14:16 ` Jens Axboe
2017-06-21 0:22 ` [PATCH 8/9] btrfs: " Jens Axboe
2017-06-21 0:22 ` [PATCH 9/9] nvme: add support for streams and directives Jens Axboe
2017-06-26 9:59 ` Christoph Hellwig
2017-06-26 13:56 ` Jens Axboe
2017-06-26 19:36 ` Andreas Dilger
2017-06-26 19:39 ` Jens Axboe
2017-06-27 14:11 ` Christoph Hellwig
2017-06-27 14:16 ` Jens Axboe
2017-06-27 14:44 ` Christoph Hellwig
2017-06-27 14:46 ` Jens Axboe
2017-06-27 14:56 ` Jens Axboe [this message]
2017-06-26 17:52 ` Martin K. Petersen
2017-06-26 18:00 ` Jens Axboe
2017-06-21 1:30 ` [PATCHSET v9] Add support for write life time hints Martin K. Petersen
2017-06-21 1:45 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2017-06-19 17:04 [PATCHSET v8] " Jens Axboe
2017-06-19 17:05 ` [PATCH 9/9] nvme: add support for streams and directives Jens Axboe
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