From: Mike Christie <[email protected]> This patch has the xen block driver use bio->bi_op for REQ_OPs and rq_flag_bits to bio->bi_rw.
Signed-off-by: Mike Christie <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> --- drivers/block/xen-blkback/blkback.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 79fe493..854ecca 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -501,7 +501,7 @@ static int xen_vbd_translate(struct phys_req *req, struct xen_blkif *blkif, struct xen_vbd *vbd = &blkif->vbd; int rc = -EACCES; - if ((operation != READ) && vbd->readonly) + if ((operation != REQ_OP_READ) && vbd->readonly) goto out; if (likely(req->nr_sects)) { @@ -1014,7 +1014,7 @@ static int dispatch_discard_io(struct xen_blkif_ring *ring, preq.sector_number = req->u.discard.sector_number; preq.nr_sects = req->u.discard.nr_sectors; - err = xen_vbd_translate(&preq, blkif, WRITE); + err = xen_vbd_translate(&preq, blkif, REQ_OP_WRITE); if (err) { pr_warn("access denied: DISCARD [%llu->%llu] on dev=%04x\n", preq.sector_number, @@ -1229,6 +1229,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, struct bio **biolist = pending_req->biolist; int i, nbio = 0; int operation; + int operation_flags = 0; struct blk_plug plug; bool drain = false; struct grant_page **pages = pending_req->segments; @@ -1247,17 +1248,19 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, switch (req_operation) { case BLKIF_OP_READ: ring->st_rd_req++; - operation = READ; + operation = REQ_OP_READ; break; case BLKIF_OP_WRITE: ring->st_wr_req++; - operation = WRITE_ODIRECT; + operation = REQ_OP_WRITE; + operation_flags = WRITE_ODIRECT; break; case BLKIF_OP_WRITE_BARRIER: drain = true; case BLKIF_OP_FLUSH_DISKCACHE: ring->st_f_req++; - operation = WRITE_FLUSH; + operation = REQ_OP_WRITE; + operation_flags = WRITE_FLUSH; break; default: operation = 0; /* make gcc happy */ @@ -1269,7 +1272,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, nseg = req->operation == BLKIF_OP_INDIRECT ? req->u.indirect.nr_segments : req->u.rw.nr_segments; - if (unlikely(nseg == 0 && operation != WRITE_FLUSH) || + if (unlikely(nseg == 0 && operation_flags != WRITE_FLUSH) || unlikely((req->operation != BLKIF_OP_INDIRECT) && (nseg > BLKIF_MAX_SEGMENTS_PER_REQUEST)) || unlikely((req->operation == BLKIF_OP_INDIRECT) && @@ -1310,7 +1313,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, if (xen_vbd_translate(&preq, ring->blkif, operation) != 0) { pr_debug("access denied: %s of [%llu,%llu] on dev=%04x\n", - operation == READ ? "read" : "write", + operation == REQ_OP_READ ? "read" : "write", preq.sector_number, preq.sector_number + preq.nr_sects, ring->blkif->vbd.pdevice); @@ -1369,7 +1372,8 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, bio->bi_private = pending_req; bio->bi_end_io = end_block_io_op; bio->bi_iter.bi_sector = preq.sector_number; - bio->bi_rw = operation; + bio->bi_op = operation; + bio->bi_rw = operation_flags; } preq.sector_number += seg[i].nsec; @@ -1377,7 +1381,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, /* This will be hit if the operation was a flush or discard. */ if (!bio) { - BUG_ON(operation != WRITE_FLUSH); + BUG_ON(operation_flags != WRITE_FLUSH); bio = bio_alloc(GFP_KERNEL, 0); if (unlikely(bio == NULL)) @@ -1387,7 +1391,8 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, bio->bi_bdev = preq.bdev; bio->bi_private = pending_req; bio->bi_end_io = end_block_io_op; - bio->bi_rw = operation; + bio->bi_op = operation; + bio->bi_rw = operation_flags; } atomic_set(&pending_req->pendcnt, nbio); @@ -1399,9 +1404,9 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, /* Let the I/Os go.. */ blk_finish_plug(&plug); - if (operation == READ) + if (operation == REQ_OP_READ) ring->st_rd_sect += preq.nr_sects; - else if (operation & WRITE) + else if (operation == REQ_OP_WRITE) ring->st_wr_sect += preq.nr_sects; return 0; -- 2.7.2 ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
