block: introduce BDRV_REQ_MAY_UNMAP request flag
commitd32f35cbc5a87af5e1100dd55074a79fc2cb5307
authorPeter Lieven <pl@kamp.de>
Thu, 24 Oct 2013 10:06:52 +0000 (24 12:06 +0200)
committerKevin Wolf <kwolf@redhat.com>
Thu, 28 Nov 2013 09:30:51 +0000 (28 10:30 +0100)
tree55fa60fcbf692789af57904cb5bc84be7b649df7
parentaa7bfbfff792538a9eeefe879fc4c629aa0b4203
block: introduce BDRV_REQ_MAY_UNMAP request flag

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
block-migration.c
block.c
block/backup.c
include/block/block.h