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Searched refs:blk_rings (Results 1 – 3 of 3) sorted by relevance

/linux-4.1.27/drivers/block/xen-blkback/
Dblkback.c1090 union blkif_back_rings *blk_rings = &blkif->blk_rings; in __do_block_io_op() local
1096 rc = blk_rings->common.req_cons; in __do_block_io_op()
1097 rp = blk_rings->common.sring->req_prod; in __do_block_io_op()
1100 if (RING_REQUEST_PROD_OVERFLOW(&blk_rings->common, rp)) { in __do_block_io_op()
1101 rc = blk_rings->common.rsp_prod_pvt; in __do_block_io_op()
1108 if (RING_REQUEST_CONS_OVERFLOW(&blk_rings->common, rc)) in __do_block_io_op()
1125 memcpy(&req, RING_GET_REQUEST(&blk_rings->native, rc), sizeof(req)); in __do_block_io_op()
1128 blkif_get_x86_32_req(&req, RING_GET_REQUEST(&blk_rings->x86_32, rc)); in __do_block_io_op()
1131 blkif_get_x86_64_req(&req, RING_GET_REQUEST(&blk_rings->x86_64, rc)); in __do_block_io_op()
1136 blk_rings->common.req_cons = ++rc; /* before make_response() */ in __do_block_io_op()
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Dxenbus.c220 BACK_RING_INIT(&blkif->blk_rings.native, sring, PAGE_SIZE); in xen_blkif_map()
227 BACK_RING_INIT(&blkif->blk_rings.x86_32, sring_x86_32, PAGE_SIZE); in xen_blkif_map()
234 BACK_RING_INIT(&blkif->blk_rings.x86_64, sring_x86_64, PAGE_SIZE); in xen_blkif_map()
246 blkif->blk_rings.common.sring = NULL; in xen_blkif_map()
274 if (blkif->blk_rings.common.sring) { in xen_blkif_disconnect()
276 blkif->blk_rings.common.sring = NULL; in xen_blkif_disconnect()
Dcommon.h270 union blkif_back_rings blk_rings; member