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(parent: 5d50dd1) | patch
block: add queue flag for SSD/non-rotational devices
authorJens Axboe <jens.axboe@oracle.com>
Wed, 24 Sep 2008 11:03:33 +0000 (13:03 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Thu, 9 Oct 2008 06:56:19 +0000 (08:56 +0200)
commit849778bfa45cd839a0b9d19a4edf3197f0d87a52
treece0acea1e609185968310316d3d1ac6f730db983tree | snapshot
parent5d50dd187b274d8229f5ebba7fe50d933c092981commit | diff
block: add queue flag for SSD/non-rotational devices

We don't want to idle in AS/CFQ if the device doesn't have a seek
penalty. So add a QUEUE_FLAG_NONROT to indicate a non-rotational
device, low level drivers should set this flag upon discovery of
an SSD or similar device type.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/as-iosched.c diff | blob | history
block/cfq-iosched.c diff | blob | history
include/linux/blkdev.h diff | blob | history
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