blkif_x86_64_sring  222 drivers/block/xen-blkback/xenbus.c 		struct blkif_x86_64_sring *sring_x86_64;
blkif_x86_64_sring  223 drivers/block/xen-blkback/xenbus.c 		sring_x86_64 = (struct blkif_x86_64_sring *)ring->blk_ring;