Commit 24119673 authored May 24, 2012 by Weston Andros Adamson Committed by J. Bruce Fields Jun 20, 2012

nfsd: probe the back channel on new connections

Initiate a CB probe when a new connection with the correct direction is added
to a session (IFF backchannel is marked as down). Without this a
BIND_CONN_TO_SESSION has no effect on the internal backchannel state, which
causes the server to reply to every SEQUENCE op with the
SEQ4_STATUS_CB_PATH_DOWN flag set until DESTROY_SESSION.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

parent 9023a409

fs/nfsd/nfs4state.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -862,6 +862,11 @@ static __be32 nfsd4_new_conn(struct svc_rqst rqstp, struct nfsd4_session ses,
		if (ret)
		/* oops; xprt is already down: */
		nfsd4_conn_lost(&conn->cn_xpt_user);
		if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN &&
		dir & NFS4_CDFC4_BACK) {
		/* callback channel may be back up */
		nfsd4_probe_callback(ses->se_client);
		}
		return nfs_ok;
		}