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authorErqi Chen <chenerqi@gmail.com>2019-08-28 21:22:45 +0800
committerIlya Dryomov <idryomov@gmail.com>2019-09-16 12:06:25 +0200
commit71a228bc8d65900179e37ac309e678f8c523f133 (patch)
tree551b01c46741345fe892c5b241c61548e2a3791c /fs/ceph
parent8edf84ba4d0ecad7d1c5b393ba004b959dae76ea (diff)
ceph: reconnect connection if session hang in opening state
If client mds session is evicted in CEPH_MDS_SESSION_OPENING state, mds won't send session msg to client, and delayed_work skip CEPH_MDS_SESSION_OPENING state session, the session hang forever. Allow ceph_con_keepalive to reconnect a session in OPENING to avoid session hang. Also, ensure that we skip sessions in RESTARTING and REJECTED states since those states can't be resurrected by issuing a keepalive. Link: https://tracker.ceph.com/issues/41551 Signed-off-by: Erqi Chen chenerqi@gmail.com Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/mds_client.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 959dcf2ab0b8..a8a8f84f3bbf 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -4088,7 +4088,9 @@ static void delayed_work(struct work_struct *work)
pr_info("mds%d hung\n", s->s_mds);
}
}
- if (s->s_state < CEPH_MDS_SESSION_OPEN) {
+ if (s->s_state == CEPH_MDS_SESSION_NEW ||
+ s->s_state == CEPH_MDS_SESSION_RESTARTING ||
+ s->s_state == CEPH_MDS_SESSION_REJECTED) {
/* this mds is failed or recovering, just wait */
ceph_put_mds_session(s);
continue;