BLKIF_DISCARD_SECURE 1033 drivers/block/xen-blkback/blkback.c 		 (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ?
BLKIF_DISCARD_SECURE  558 drivers/block/xen-blkfront.c 		ring_req->u.discard.flag = BLKIF_DISCARD_SECURE;