tree 8af3e191479a803aaeb9e349efee9d22b7aec00f
parent 322a8b034003c0d46d39af85bf24fee27b902f48
author Li Dongyang <lidongyang@novell.com> 1314873548 +0800
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1318513709 -0400

xen-blkfront: add BLKIF_OP_DISCARD and discard request struct

Now we use BLKIF_OP_DISCARD and add blkif_request_discard to blkif_request union,
the patch is taken from Owen Smith and Konrad, Thanks

Signed-off-by: Owen Smith <owen.smith@citrix.com>
Signed-off-by: Li Dongyang <lidongyang@novell.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>