From cc8e8342930129aa2c9b629e1653e4681f0896ea Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 4 Jan 2017 16:21:58 +0800 Subject: [PATCH] ceph: fix mds cluster availability check We should apply the check after getting the initial mdsmap. Fixes: e9e427f0a14f ("ceph: check availability of mds cluster on mount") Link: http://tracker.ceph.com/issues/18161 Signed-off-by: Yan, Zheng --- fs/ceph/mds_client.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 4f49253387a0..ec6b35e9f966 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2106,6 +2106,11 @@ static int __do_request(struct ceph_mds_client *mdsc, dout("do_request mdsmap err %d\n", err); goto finish; } + if (mdsc->mdsmap->m_epoch == 0) { + dout("do_request no mdsmap, waiting for map\n"); + list_add(&req->r_wait, &mdsc->waiting_for_map); + goto finish; + } if (!(mdsc->fsc->mount_options->flags & CEPH_MOUNT_OPT_MOUNTWAIT) && !ceph_mdsmap_is_cluster_available(mdsc->mdsmap)) { -- 2.39.5