From 9f4433897cd5be89dfa841535770690ecf2b9efc Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Thu, 29 Nov 2018 11:22:50 +0800 Subject: [PATCH] ceph: don't update importing cap's mseq when handing cap export commit 3c1392d4c49962a31874af14ae9ff289cb2b3851 upstream. Updating mseq makes client think importer mds has accepted all prior cap messages and importer mds knows what caps client wants. Actually some cap messages may have been dropped because of mseq mismatch. If mseq is left untouched, importing cap's mds_wanted later will get reset by cap import message. Cc: stable@vger.kernel.org Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov Signed-off-by: Greg Kroah-Hartman Signed-off-by: Yang Yingliang --- fs/ceph/caps.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index dd7dfdd2ba13..eadffaa39f4e 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3566,7 +3566,6 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex, tcap->cap_id = t_cap_id; tcap->seq = t_seq - 1; tcap->issue_seq = t_seq - 1; - tcap->mseq = t_mseq; tcap->issued |= issued; tcap->implemented |= issued; if (cap == ci->i_auth_cap) -- GitLab