From 5f29ddd4f0954ad6c84e28b934773f128840f064 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Thu, 8 Nov 2012 08:01:39 -0600 Subject: [PATCH] rbd: standardize ceph_osd_request variable names There are spots where a ceph_osds_request pointer variable is given the name "req". Since we're dealing with (at least) three types of requests (block layer, rbd, and osd), I find this slightly distracting. Change such instances to use "osd_req" consistently to make the abstraction represented a little more obvious. Signed-off-by: Alex Elder Reviewed-by: Dan Mick Reviewed-by: Josh Durgin --- drivers/block/rbd.c | 60 +++++++++++++++++++++++---------------------- 1 file changed, 31 insertions(+), 29 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 0091fa466f83..85131de90012 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1111,12 +1111,12 @@ static int rbd_do_request(struct request *rq, struct ceph_osd_req_op *ops, struct rbd_req_coll *coll, int coll_index, - void (*rbd_cb)(struct ceph_osd_request *req, - struct ceph_msg *msg), + void (*rbd_cb)(struct ceph_osd_request *, + struct ceph_msg *), struct ceph_osd_request **linger_req, u64 *ver) { - struct ceph_osd_request *req; + struct ceph_osd_request *osd_req; struct ceph_file_layout *layout; int ret; u64 bno; @@ -1143,67 +1143,68 @@ static int rbd_do_request(struct request *rq, (unsigned long long) len, coll, coll_index); osdc = &rbd_dev->rbd_client->client->osdc; - req = ceph_osdc_alloc_request(osdc, flags, snapc, ops, + osd_req = ceph_osdc_alloc_request(osdc, flags, snapc, ops, false, GFP_NOIO, pages, bio); - if (!req) { + if (!osd_req) { ret = -ENOMEM; goto done_pages; } - req->r_callback = rbd_cb; + osd_req->r_callback = rbd_cb; rbd_req->rq = rq; rbd_req->bio = bio; rbd_req->pages = pages; rbd_req->len = len; - req->r_priv = rbd_req; + osd_req->r_priv = rbd_req; - reqhead = req->r_request->front.iov_base; + reqhead = osd_req->r_request->front.iov_base; reqhead->snapid = cpu_to_le64(CEPH_NOSNAP); - strncpy(req->r_oid, object_name, sizeof(req->r_oid)); - req->r_oid_len = strlen(req->r_oid); + strncpy(osd_req->r_oid, object_name, sizeof(osd_req->r_oid)); + osd_req->r_oid_len = strlen(osd_req->r_oid); - layout = &req->r_file_layout; + layout = &osd_req->r_file_layout; memset(layout, 0, sizeof(*layout)); layout->fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); layout->fl_stripe_count = cpu_to_le32(1); layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); layout->fl_pg_pool = cpu_to_le32((int) rbd_dev->spec->pool_id); ret = ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno, - req, ops); + osd_req, ops); rbd_assert(ret == 0); - ceph_osdc_build_request(req, ofs, &len, + ceph_osdc_build_request(osd_req, ofs, &len, ops, snapc, &mtime, - req->r_oid, req->r_oid_len); + osd_req->r_oid, osd_req->r_oid_len); if (linger_req) { - ceph_osdc_set_request_linger(osdc, req); - *linger_req = req; + ceph_osdc_set_request_linger(osdc, osd_req); + *linger_req = osd_req; } - ret = ceph_osdc_start_request(osdc, req, false); + ret = ceph_osdc_start_request(osdc, osd_req, false); if (ret < 0) goto done_err; if (!rbd_cb) { - ret = ceph_osdc_wait_request(osdc, req); + u64 version; + + ret = ceph_osdc_wait_request(osdc, osd_req); + version = le64_to_cpu(osd_req->r_reassert_version.version); if (ver) - *ver = le64_to_cpu(req->r_reassert_version.version); - dout("reassert_ver=%llu\n", - (unsigned long long) - le64_to_cpu(req->r_reassert_version.version)); - ceph_osdc_put_request(req); + *ver = version; + dout("reassert_ver=%llu\n", (unsigned long long) version); + ceph_osdc_put_request(osd_req); } return ret; done_err: bio_chain_put(rbd_req->bio); - ceph_osdc_put_request(req); + ceph_osdc_put_request(osd_req); done_pages: rbd_coll_end_req(rbd_req, ret, len); kfree(rbd_req); @@ -1213,9 +1214,9 @@ static int rbd_do_request(struct request *rq, /* * Ceph osd op callback */ -static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) +static void rbd_req_cb(struct ceph_osd_request *osd_req, struct ceph_msg *msg) { - struct rbd_request *rbd_req = req->r_priv; + struct rbd_request *rbd_req = osd_req->r_priv; struct ceph_osd_reply_head *replyhead; struct ceph_osd_op *op; __s32 rc; @@ -1246,13 +1247,14 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) if (rbd_req->bio) bio_chain_put(rbd_req->bio); - ceph_osdc_put_request(req); + ceph_osdc_put_request(osd_req); kfree(rbd_req); } -static void rbd_simple_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) +static void rbd_simple_req_cb(struct ceph_osd_request *osd_req, + struct ceph_msg *msg) { - ceph_osdc_put_request(req); + ceph_osdc_put_request(osd_req); } /* -- GitLab