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rbd: get rid of rbd_req_sync_exec()
Get rid rbd_req_sync_exec() because it is no longer used. That eliminates the last use of rbd_req_sync_op(), so get rid of that too. And finally, that leaves rbd_do_request() unreferenced, so get rid of that. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder
Sage Weil
parent
36be9a7618
commit
9f20e02a53
@ -1162,126 +1162,6 @@ static void rbd_osd_req_op_destroy(struct ceph_osd_req_op *op)
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kfree(op);
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}
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/*
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* Send ceph osd request
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*/
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static int rbd_do_request(struct request *rq,
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struct rbd_device *rbd_dev,
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struct ceph_snap_context *snapc,
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u64 snapid,
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const char *object_name, u64 ofs, u64 len,
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struct bio *bio,
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struct page **pages,
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int num_pages,
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int flags,
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struct ceph_osd_req_op *op,
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void (*rbd_cb)(struct ceph_osd_request *,
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struct ceph_msg *),
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u64 *ver)
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{
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struct ceph_osd_client *osdc;
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struct ceph_osd_request *osd_req;
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struct timespec mtime = CURRENT_TIME;
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int ret;
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dout("rbd_do_request object_name=%s ofs=%llu len=%llu\n",
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object_name, (unsigned long long) ofs,
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(unsigned long long) len);
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osdc = &rbd_dev->rbd_client->client->osdc;
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osd_req = ceph_osdc_alloc_request(osdc, snapc, 1, false, GFP_NOIO);
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if (!osd_req)
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return -ENOMEM;
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osd_req->r_flags = flags;
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osd_req->r_pages = pages;
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if (bio) {
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osd_req->r_bio = bio;
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bio_get(osd_req->r_bio);
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}
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osd_req->r_callback = rbd_cb;
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osd_req->r_priv = NULL;
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strncpy(osd_req->r_oid, object_name, sizeof(osd_req->r_oid));
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osd_req->r_oid_len = strlen(osd_req->r_oid);
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osd_req->r_file_layout = rbd_dev->layout; /* struct */
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osd_req->r_num_pages = calc_pages_for(ofs, len);
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osd_req->r_page_alignment = ofs & ~PAGE_MASK;
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ceph_osdc_build_request(osd_req, ofs, len, 1, op,
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snapc, snapid, &mtime);
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if (op->op == CEPH_OSD_OP_WATCH && op->watch.flag) {
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ceph_osdc_set_request_linger(osdc, osd_req);
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rbd_dev->watch_request = osd_req;
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}
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ret = ceph_osdc_start_request(osdc, osd_req, false);
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if (ret < 0)
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goto done_err;
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if (!rbd_cb) {
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u64 version;
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ret = ceph_osdc_wait_request(osdc, osd_req);
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version = le64_to_cpu(osd_req->r_reassert_version.version);
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if (ver)
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*ver = version;
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dout("reassert_ver=%llu\n", (unsigned long long) version);
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ceph_osdc_put_request(osd_req);
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}
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return ret;
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done_err:
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if (bio)
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bio_chain_put(osd_req->r_bio);
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ceph_osdc_put_request(osd_req);
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return ret;
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}
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/*
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* Do a synchronous ceph osd operation
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*/
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static int rbd_req_sync_op(struct rbd_device *rbd_dev,
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int flags,
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struct ceph_osd_req_op *op,
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const char *object_name,
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u64 ofs, u64 inbound_size,
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char *inbound,
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u64 *ver)
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{
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int ret;
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struct page **pages;
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int num_pages;
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rbd_assert(op != NULL);
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num_pages = calc_pages_for(ofs, inbound_size);
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pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
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if (IS_ERR(pages))
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return PTR_ERR(pages);
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ret = rbd_do_request(NULL, rbd_dev, NULL, CEPH_NOSNAP,
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object_name, ofs, inbound_size, NULL,
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pages, num_pages,
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flags,
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op,
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NULL,
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ver);
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if (ret < 0)
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goto done;
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if ((flags & CEPH_OSD_FLAG_READ) && inbound)
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ret = ceph_copy_from_page_vector(pages, inbound, ofs, ret);
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done:
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ceph_release_page_vector(pages, num_pages);
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return ret;
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}
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static int rbd_obj_request_submit(struct ceph_osd_client *osdc,
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struct rbd_obj_request *obj_request)
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{
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@ -1317,45 +1197,6 @@ static void rbd_obj_request_complete(struct rbd_obj_request *obj_request)
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complete_all(&obj_request->completion);
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}
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/*
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* Synchronous osd object method call
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*/
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static int rbd_req_sync_exec(struct rbd_device *rbd_dev,
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const char *object_name,
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const char *class_name,
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const char *method_name,
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const char *outbound,
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size_t outbound_size,
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char *inbound,
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size_t inbound_size,
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u64 *ver)
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{
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struct ceph_osd_req_op *op;
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int ret;
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/*
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* Any input parameters required by the method we're calling
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* will be sent along with the class and method names as
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* part of the message payload. That data and its size are
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* supplied via the indata and indata_len fields (named from
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* the perspective of the server side) in the OSD request
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* operation.
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*/
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op = rbd_osd_req_op_create(CEPH_OSD_OP_CALL, class_name,
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method_name, outbound, outbound_size);
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if (!op)
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return -ENOMEM;
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ret = rbd_req_sync_op(rbd_dev, CEPH_OSD_FLAG_READ, op,
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object_name, 0, inbound_size, inbound,
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ver);
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rbd_osd_req_op_destroy(op);
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dout("cls_exec returned %d\n", ret);
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return ret;
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}
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static void rbd_osd_read_callback(struct rbd_obj_request *obj_request,
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struct ceph_osd_op *op)
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{
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@ -2831,7 +2672,6 @@ static int _rbd_dev_v2_snap_size(struct rbd_device *rbd_dev, u64 snap_id,
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__le64 size;
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} __attribute__ ((packed)) size_buf = { 0 };
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(void) rbd_req_sync_exec; /* Avoid a warning */
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ret = rbd_obj_method_sync(rbd_dev, rbd_dev->header_name,
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"rbd", "get_size",
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(char *) &snapid, sizeof (snapid),
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