summaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
authorWeston Andros Adamson <dros@netapp.com>2012-05-24 15:42:17 -0400
committerJ. Bruce Fields <bfields@redhat.com>2012-06-20 08:59:39 -0400
commit2411967305dbfb8930b9b9c11f55f6c1ef7361e1 (patch)
tree516b0204138443a5207d71170a13cac333f87a32 /fs
parent9023a4093d6594040fb8142cdd2615d3461caa7a (diff)
downloadlinux-2411967305dbfb8930b9b9c11f55f6c1ef7361e1.tar.bz2
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs4state.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 94effd5bc4a1..8b80a10d4fc5 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -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;
}