From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Tue, 18 Sep 2012 16:19:29 +0000 (-0400)
Subject: block: ioctl to zero block ranges
X-Git-Tag: v3.7-rc1~54^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66ba32dc167202c3cf8c86806581a9393ec7f488;p=pandora-kernel.git

block: ioctl to zero block ranges

Introduce a BLKZEROOUT ioctl which can be used to clear block ranges by
way of blkdev_issue_zeroout().

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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