From 7983d29437b99e1e9786e2621f297aa6cd6bf3ba 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 --- fs/ceph/caps.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index ff5d32c..92eb9c3 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3438,7 +3438,6 @@ retry: 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) -- 2.7.4