ceph: reconnect connection if session hang in opening state
diff mbox series

Message ID 20190910130507.46145-1-chenerqi@gmail.com
State New
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Series
  • ceph: reconnect connection if session hang in opening state
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Commit Message

erqi chen Sept. 10, 2019, 1:05 p.m. UTC
From: chenerqi <chenerqi@kuaishou.con>

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.
ceph_con_keepalive reconnct connection for CEPH_MDS_SESSION_OPENING
session to avoid session hang.

Fixes: https://tracker.ceph.com/issues/41551
Signed-off-by: Erqi Chen chenerqi@gmail.com
---
 fs/ceph/mds_client.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 937e887..8f382b5 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3581,7 +3581,9 @@  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;