libceph: rename ceph_osd_request::r_linger_osd to r_linger_osd_item

So that:

req->r_osd_item --> osd->o_requests list
req->r_linger_osd_item --> osd->o_linger_requests list

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 94ec696..7490a03 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -117,7 +117,7 @@
 	struct list_head r_req_lru_item;
 	struct list_head r_osd_item;
 	struct list_head r_linger_item;
-	struct list_head r_linger_osd;
+	struct list_head r_linger_osd_item;
 	struct ceph_osd *r_osd;
 	struct ceph_pg   r_pgid;
 	int              r_pg_osds[CEPH_PG_MAX_SIZE];