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libceph: introduce and start using oid abstraction

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In preparation for tiering support, which would require having two
(base and target) object names for each osd request and also copying
those names around, introduce struct ceph_object_id (oid) and a couple
helpers to facilitate those copies and encapsulate the fact that object
name is not necessarily a NUL-terminated string.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Ilya Dryomov
2014-01-27 17:40:18 +02:00
parent 2d0ebc5d59
commit 4295f2217a
5 changed files with 50 additions and 25 deletions
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drivers/block/rbd.c
+2 -8
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@@ -1809,10 +1809,7 @@ static struct ceph_osd_request *rbd_osd_req_create(
osd_req->r_priv = obj_request;
osd_req->r_oloc.pool = ceph_file_layout_pg_pool(rbd_dev->layout);
osd_req->r_oid_len = strlen(obj_request->object_name);
rbd_assert(osd_req->r_oid_len < sizeof (osd_req->r_oid));
memcpy(osd_req->r_oid, obj_request->object_name, osd_req->r_oid_len);
ceph_oid_set_name(&osd_req->r_oid, obj_request->object_name);
return osd_req;
}
@@ -1850,10 +1847,7 @@ rbd_osd_req_create_copyup(struct rbd_obj_request *obj_request)
osd_req->r_priv = obj_request;
osd_req->r_oloc.pool = ceph_file_layout_pg_pool(rbd_dev->layout);
osd_req->r_oid_len = strlen(obj_request->object_name);
rbd_assert(osd_req->r_oid_len < sizeof (osd_req->r_oid));
memcpy(osd_req->r_oid, obj_request->object_name, osd_req->r_oid_len);
ceph_oid_set_name(&osd_req->r_oid, obj_request->object_name);
return osd_req;
}