From 30573d680355ca0de4db2113b9080cd078ac726f Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Tue, 13 Nov 2012 21:11:15 -0600 Subject: [PATCH] rbd: assume single op in a request We now know that every of rbd_req_sync_op() passes an array of exactly one operation, as evidenced by all callers passing 1 as its num_op argument. So get rid of that argument, assuming a single op. Similarly, we now know that all callers of rbd_do_request() pass 1 as the num_op value, so that parameter can be eliminated as well. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- drivers/block/rbd.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index cc8924d8f263..7ce178fd6fe5 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1113,8 +1113,7 @@ static int rbd_do_request(struct request *rq, struct page **pages, int num_pages, int flags, - unsigned int num_op, - struct ceph_osd_req_op *ops, + struct ceph_osd_req_op *op, struct rbd_req_coll *coll, int coll_index, void (*rbd_cb)(struct ceph_osd_request *, @@ -1143,7 +1142,7 @@ static int rbd_do_request(struct request *rq, (unsigned long long) len, coll, coll_index); osdc = &rbd_dev->rbd_client->client->osdc; - osd_req = ceph_osdc_alloc_request(osdc, snapc, num_op, false, GFP_NOIO); + osd_req = ceph_osdc_alloc_request(osdc, snapc, 1, false, GFP_NOIO); if (!osd_req) { ret = -ENOMEM; goto done_pages; @@ -1169,10 +1168,10 @@ static int rbd_do_request(struct request *rq, rbd_layout_init(&osd_req->r_file_layout, rbd_dev->spec->pool_id); ret = ceph_calc_raw_layout(&osd_req->r_file_layout, - ofs, &len, &bno, osd_req, ops); + ofs, &len, &bno, osd_req, op); rbd_assert(ret == 0); - ceph_osdc_build_request(osd_req, ofs, len, num_op, ops, + ceph_osdc_build_request(osd_req, ofs, len, 1, op, snapc, snapid, &mtime); if (linger_req) { @@ -1255,8 +1254,7 @@ static void rbd_simple_req_cb(struct ceph_osd_request *osd_req, */ static int rbd_req_sync_op(struct rbd_device *rbd_dev, int flags, - unsigned int num_op, - struct ceph_osd_req_op *ops, + struct ceph_osd_req_op *op, const char *object_name, u64 ofs, u64 inbound_size, char *inbound, @@ -1267,7 +1265,7 @@ static int rbd_req_sync_op(struct rbd_device *rbd_dev, struct page **pages; int num_pages; - rbd_assert(ops != NULL); + rbd_assert(op != NULL); num_pages = calc_pages_for(ofs, inbound_size); pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL); @@ -1278,7 +1276,7 @@ static int rbd_req_sync_op(struct rbd_device *rbd_dev, object_name, ofs, inbound_size, NULL, pages, num_pages, flags, - num_op, ops, + op, NULL, 0, NULL, linger_req, ver); @@ -1348,7 +1346,7 @@ static int rbd_do_op(struct request *rq, bio, NULL, 0, flags, - 1, op, + op, coll, coll_index, rbd_req_cb, 0, NULL); if (ret < 0) @@ -1377,7 +1375,7 @@ static int rbd_req_sync_read(struct rbd_device *rbd_dev, return -ENOMEM; ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_READ, - 1, op, object_name, ofs, len, buf, NULL, ver); + op, object_name, ofs, len, buf, NULL, ver); rbd_destroy_op(op); return ret; @@ -1405,7 +1403,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *rbd_dev, rbd_dev->header_name, 0, 0, NULL, NULL, 0, CEPH_OSD_FLAG_READ, - 1, op, + op, NULL, 0, rbd_simple_req_cb, 0, NULL); @@ -1457,7 +1455,7 @@ static int rbd_req_sync_watch(struct rbd_device *rbd_dev) ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, - 1, op, + op, rbd_dev->header_name, 0, 0, NULL, &rbd_dev->watch_request, NULL); @@ -1494,7 +1492,7 @@ static int rbd_req_sync_unwatch(struct rbd_device *rbd_dev) ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, - 1, op, + op, rbd_dev->header_name, 0, 0, NULL, NULL, NULL); @@ -1545,7 +1543,7 @@ static int rbd_req_sync_exec(struct rbd_device *rbd_dev, op->cls.indata = outbound; op->cls.indata_len = outbound_size; - ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_READ, 1, op, + ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_READ, op, object_name, 0, inbound_size, inbound, NULL, ver); -- 2.39.5