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(parent: 4214635) | patch
xen-blkback: convert hole punching to discard request on loop devices
authorLi Dongyang <lidongyang@novell.com>
Thu, 10 Nov 2011 07:52:06 +0000 (15:52 +0800)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fri, 18 Nov 2011 18:28:05 +0000 (13:28 -0500)
commitae18be11b5ccc3be9e268592616488c5f9d987f5
tree4f8a98990f946d8d82ffdb4d43c1120cd4e97a26tree | snapshot (tar.gz zip)
parent421463526fd1d8b5cb575baca12667c1005a110bcommit | diff
xen-blkback: convert hole punching to discard request on loop devices

As of dfaa2ef68e80c378e610e3c8c536f1c239e8d3ef, loop devices support
discard request now. We could just issue a discard request, and
the loop driver will punch the hole for us, so we don't need to touch
the internals of loop device and punch the hole ourselves, Thanks.

V0->V1: rebased on devel/for-jens-3.3

Signed-off-by: Li Dongyang <lidongyang@novell.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
drivers/block/xen-blkback/blkback.c diff | blob | blame | history