From fa0aa3b839b922c7bb911dbe2435da2a4e59d82d Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Mon, 28 Aug 2017 15:07:42 +0800 Subject: [PATCH] ceph: fix message order check in handle_cap_export() If caps for importer mds exists, but cap id mismatch, client should have received corresponding import message. Because cap ID does not change as long as client holds the caps. Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/caps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 5daf86621871..7a7945032802 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3427,7 +3427,7 @@ retry: tcap = __get_cap_for_mds(ci, target); if (tcap) { /* already have caps from the target */ - if (tcap->cap_id != t_cap_id || + if (tcap->cap_id == t_cap_id && ceph_seq_cmp(tcap->seq, t_seq) < 0) { dout(" updating import cap %p mds%d\n", tcap, target); tcap->cap_id = t_cap_id; -- 2.20.1