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libceph: use con get/put ops from osd_client 

There were a few direct calls to ceph_con_{get,put}() instead of the con
ops from osd_client.c.  This is a bug since those ops aren't defined to
be ceph_con_get/put.

This breaks refcounting on the ceph_osd structs that contain the
ceph_connections, and could lead to all manner of strangeness.

The purpose of the ->get and ->put methods in a ceph connection are
to allow the connection to indicate it has a reference to something
external to the messaging system, *not* to indicate something
external has a reference to the connection.

[elder@inktank.com: added that last sentence]

Signed-off-by: Sage Weil <sage@newdream.net>
Reviewed-by: Alex Elder <elder@inktank.com>
This commit is contained in:
Sage Weil 2012-05-31 20:22:18 -07:00 committed by Alex Elder
parent ab8cb34a4b
commit 0d47766f14
1 changed files with 4 additions and 4 deletions
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8
net/ceph/osd_client.c
View File

@ -144,7 +144,7 @@ void ceph_osdc_release_request(struct kref *kref)
req->r_pages, req->r_con_filling_msg);
ceph_con_revoke_message(req->r_con_filling_msg,
req->r_reply);
ceph_con_put(req->r_con_filling_msg);
req->r_con_filling_msg->ops->put(req->r_con_filling_msg);
}
if (req->r_reply)
ceph_msg_put(req->r_reply);
@ -1216,7 +1216,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
if (req->r_con_filling_msg == con && req->r_reply == msg) {
dout(" dropping con_filling_msg ref %p\n", con);
req->r_con_filling_msg = NULL;
ceph_con_put(con);
con->ops->put(con);
}
if (!req->r_got_reply) {
@ -2028,7 +2028,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
dout("get_reply revoking msg %p from old con %p\n",
req->r_reply, req->r_con_filling_msg);
ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply);
ceph_con_put(req->r_con_filling_msg);
req->r_con_filling_msg->ops->put(req->r_con_filling_msg);
req->r_con_filling_msg = NULL;
}
@ -2063,7 +2063,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
#endif
}
*skip = 0;
req->r_con_filling_msg = ceph_con_get(con);
req->r_con_filling_msg = con->ops->get(con);
dout("get_reply tid %lld %p\n", tid, m);
out: