173 	struct xen_blkif *blkif = ring->blkif;  in add_persistent_gnt()  local
176 		if (!blkif->vbd.overflow_max_grants)  in add_persistent_gnt()
177 			blkif->vbd.overflow_max_grants = 1;  in add_persistent_gnt()
347 	    !ring->blkif->vbd.overflow_max_grants)) {  in purge_persistent_gnt()
400 		ring->blkif->vbd.overflow_max_grants = 0;  in purge_persistent_gnt()
449 static int xen_vbd_translate(struct phys_req *req, struct xen_blkif *blkif,  in xen_vbd_translate()  argument
452 	struct xen_vbd *vbd = &blkif->vbd;  in xen_vbd_translate()
475 static void xen_vbd_resize(struct xen_blkif *blkif)  in xen_vbd_resize()  argument
477 	struct xen_vbd *vbd = &blkif->vbd;  in xen_vbd_resize()
480 	struct xenbus_device *dev = xen_blkbk_xenbus(blkif->be);  in xen_vbd_resize()
484 		blkif->domid, MAJOR(vbd->pdevice), MINOR(vbd->pdevice));  in xen_vbd_resize()
557 	struct xen_blkif *blkif = ring->blkif;  in xen_blkif_schedule()  local
558 	struct xen_vbd *vbd = &blkif->vbd;  in xen_blkif_schedule()
569 			xen_vbd_resize(blkif);  in xen_blkif_schedule()
605 		if (blkif->vbd.feature_gnt_persistent &&  in xen_blkif_schedule()
612 		if (time_before(jiffies, blkif->buffer_squeeze_end))  in xen_blkif_schedule()
675 	struct xen_blkif *blkif = ring->blkif;  in xen_blkbk_unmap_and_respond_callback()  local
697 	if (atomic_dec_and_test(&ring->inflight) && atomic_read(&blkif->drain)) {  in xen_blkbk_unmap_and_respond_callback()
698 		complete(&blkif->drain_complete);  in xen_blkbk_unmap_and_respond_callback()
700 	xen_blkif_put(blkif);  in xen_blkbk_unmap_and_respond_callback()
769 	struct xen_blkif *blkif = ring->blkif;  in xen_blkbk_map()  local
771 	use_persistent_gnts = (blkif->vbd.feature_gnt_persistent);  in xen_blkbk_map()
812 					  blkif->domid);  in xen_blkbk_map()
874 		if (use_persistent_gnts && !blkif->vbd.overflow_max_grants) {  in xen_blkbk_map()
875 			blkif->vbd.overflow_max_grants = 1;  in xen_blkbk_map()
877 			         blkif->domid, blkif->vbd.handle);  in xen_blkbk_map()
971 	struct xen_blkif *blkif = ring->blkif;  in dispatch_discard_io()  local
972 	struct block_device *bdev = blkif->vbd.bdev;  in dispatch_discard_io()
975 	xen_blkif_get(blkif);  in dispatch_discard_io()
980 	err = xen_vbd_translate(&preq, blkif, REQ_OP_WRITE);  in dispatch_discard_io()
984 			preq.sector_number + preq.nr_sects, blkif->vbd.pdevice);  in dispatch_discard_io()
989 	if (blkif->vbd.discard_secure &&  in dispatch_discard_io()
1006 	xen_blkif_put(blkif);  in dispatch_discard_io()
1022 	struct xen_blkif *blkif = ring->blkif;  in xen_blk_drain_io()  local
1024 	atomic_set(&blkif->drain, 1);  in xen_blk_drain_io()
1029 				&blkif->drain_complete, HZ);  in xen_blk_drain_io()
1031 		if (!atomic_read(&blkif->drain))  in xen_blk_drain_io()
1034 	atomic_set(&blkif->drain, 0);  in xen_blk_drain_io()
1044 		xen_blkbk_flush_diskcache(XBT_NIL, pending_req->ring->blkif->be, 0);  in __end_block_io_op()
1049 		xen_blkbk_barrier(XBT_NIL, pending_req->ring->blkif->be, 0);  in __end_block_io_op()
1202 			rp, rc, rp - rc, ring->blkif->vbd.pdevice);  in __do_block_io_op()
1225 		switch (ring->blkif->blk_protocol) {  in __do_block_io_op()
1384 	if (xen_vbd_translate(&preq, ring->blkif, operation) != 0) {  in dispatch_rw_block_io()
1389 			 ring->blkif->vbd.pdevice);  in dispatch_rw_block_io()
1401 				 ring->blkif->domid);  in dispatch_rw_block_io()
1425 	xen_blkif_get(ring->blkif);  in dispatch_rw_block_io()
1500 	switch (ring->blkif->blk_protocol) {  in make_response()