linux-toradex.git/fs/ceph/messenger.h, branch tegra-11.2.2

ceph: close out mds, osd connections before stopping auth

2010-05-29T16:42:03+00:00

The auth module (part of the mon_client) is needed to free any
ceph_authorizer(s) used by the mds and osd connections.  Flush the msgr
workqueue before stopping monc to ensure that the destroy_authorizer
auth op is available when those connections are closed out.

Signed-off-by: Sage Weil

ceph: all allocation functions should get gfp_mask

2010-05-17T22:25:42+00:00

This is essential, as for the rados block device we'll need
to run in different contexts that would need flags that
are other than GFP_NOFS.

Signed-off-by: Yehuda Sadeh 
Signed-off-by: Sage Weil

ceph: save peer feature bits in connection structure

2010-05-17T22:25:38+00:00

These are used for adjusting behavior, such as conditionally encoding a
newer message format.

Signed-off-by: Sage Weil

ceph: resync headers with userland

2010-05-17T22:25:38+00:00

Notable changes include pool op defines and types, FLOCK feature bit, and
new CMPXATTR osd ops.

Signed-off-by: Sage Weil

ceph: clean up connection reset

2010-05-17T22:25:20+00:00

Reset out_keepalive_pending and peer_global_seq, and drop unused var.

Signed-off-by: Sage Weil

ceph: simplify ceph_msg_new

2010-05-17T22:25:19+00:00

We only need to pass in front_len.  Callers can attach any other payload
pieces (middle, data) as they see fit.

Signed-off-by: Sage Weil

ceph: preserve seq # on requeued messages after transient transport errors

2010-05-12T04:20:38+00:00

If the tcp connection drops and we reconnect to reestablish a stateful
session (with the mds), we need to resend previously sent (and possibly
received) messages with the _same_ seq # so that they can be dropped on
the other end if needed.  Only assign a new seq once after the message is
queued.

Signed-off-by: Sage Weil

ceph: avoid reopening osd connections when address hasn't changed

2010-03-23T14:47:01+00:00

We get a fault callback on _every_ tcp connection fault.  Normally, we
want to reopen the connection when that happens.  If the address we have
is bad, however, and connection attempts always result in a connection
refused or similar error, explicitly closing and reopening the msgr
connection just prevents the messenger's backoff logic from kicking in.
The result can be a console full of

[ 3974.417106] ceph: osd11 10.3.14.138:6800 connection failed
[ 3974.423295] ceph: osd11 10.3.14.138:6800 connection failed
[ 3974.429709] ceph: osd11 10.3.14.138:6800 connection failed

Instead, if we get a fault, and have outstanding requests, but the osd
address hasn't changed and the connection never successfully connected in
the first place, do nothing to the osd connection.  The messenger layer
will back off and retry periodically, because we never connected and thus
the lossy bit is not set.

Instead, touch each request's r_stamp so that handle_timeout can tell the
request is still alive and kicking.

Signed-off-by: Sage Weil

ceph: reset bits on connection close

2010-03-01T23:19:51+00:00

Clear LOSSYTX bit, so that if/when we reconnect, said reconnect
will retry on failure.

Clear _PENDING bits too, to avoid polluting subsequent
connection state.

Drop unused REGISTERED bit.

Signed-off-by: Sage Weil

ceph: allow renewal of auth credentials

2010-02-10T23:04:47+00:00

Add infrastructure to allow the mon_client to periodically renew its auth
credentials.  Also add a messenger callback that will force such a renewal
if a peer rejects our authenticator.

Signed-off-by: Yehuda Sadeh 
Signed-off-by: Sage Weil