From: Jens Axboe <jens.axboe@oracle.com>
To: Mike Snitzer <snitzer@redhat.com>
Cc: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>,
dm-devel@redhat.com, Alasdair Kergon <agk@redhat.com>
Subject: Re: [PATCH 1/6] block: Adjust elv_iosched_show to return "none" for bio-based DM
Date: Mon, 24 May 2010 09:06:39 +0200 [thread overview]
Message-ID: <20100524070638.GS23411@kernel.dk> (raw)
In-Reply-To: <1274651101-9784-2-git-send-email-snitzer@redhat.com>
On Sun, May 23 2010, Mike Snitzer wrote:
> Bio-based DM doesn't use an elevator (queue is !blk_queue_stackable()).
>
> Longer-term DM will not allocate an elevator for bio-based DM. But even
> then there will be small potential for an elevator to be allocated for
> a request-based DM table only to have a bio-based table be loaded in the
> end.
>
> Displaying "none" for bio-based DM will help avoid user confusion.
Thanks, applied for 2.6.35.
--
Jens Axboe
next prev parent reply other threads:[~2010-05-24 7:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-23 21:44 [PATCH 0/6] dm: restrict conflicting table loads and improve queue initialization Mike Snitzer
2010-05-23 21:44 ` [PATCH 1/6] block: Adjust elv_iosched_show to return "none" for bio-based DM Mike Snitzer
2010-05-24 7:06 ` Jens Axboe [this message]
2010-05-23 21:44 ` [PATCH 2/6] dm ioctl: interlock resume and table clear Mike Snitzer
2010-05-24 17:08 ` Mike Snitzer
2010-05-23 21:44 ` [PATCH 3/6] dm: prevent table type changes after initial table load Mike Snitzer
2010-05-23 21:44 ` [PATCH 4/6 "v8"] dm: only initialize full request_queue for request-based device Mike Snitzer
2010-05-23 21:45 ` [PATCH 5/6] dm ioctl: introduce dm_get_verified_mdptr Mike Snitzer
2010-05-23 21:45 ` [PATCH 6/6] dm ioctl: introduce find_device_noinit Mike Snitzer
2010-05-24 10:00 ` [PATCH 0/6] dm: restrict conflicting table loads and improve queue initialization Kiyoshi Ueda
2010-05-24 17:24 ` Mike Snitzer
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