Ilya noticed that the first access to a blacklisted mount would often get back -EACCES, but then subsequent calls would be OK. The problem is in __do_request. If the session is marked as REJECTED, a hard error is returned instead of waiting for a new session to come into being. When the session is REJECTED and the mount was done with recover_session=clean, queue the request to the waiting_for_map queue, which will be awoken after tearing down the old session. URL: https://tracker.ceph.com/issues/47385 Reported-by: Ilya Dryomov <idryomov@xxxxxxxxx> Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- fs/ceph/mds_client.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index fd16db6ecb0a..b07e7adf146f 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2819,7 +2819,10 @@ static void __do_request(struct ceph_mds_client *mdsc, if (session->s_state != CEPH_MDS_SESSION_OPEN && session->s_state != CEPH_MDS_SESSION_HUNG) { if (session->s_state == CEPH_MDS_SESSION_REJECTED) { - err = -EACCES; + if (ceph_test_mount_opt(mdsc->fsc, CLEANRECOVER)) + list_add(&req->r_wait, &mdsc->waiting_for_map); + else + err = -EACCES; goto out_session; } /* -- 2.26.2
