From: "Yan, Zheng" <zheng.z.yan@xxxxxxxxx> MDS ignores cap update message if migrate_seq mismatch, so when receiving a cap import message with higher migrate_seq, set mds_want according to the cap import message. Signed-off-by: Yan, Zheng <zheng.z.yan@xxxxxxxxx> --- fs/ceph/caps.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 5d5c32b..61f3833 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -553,6 +553,7 @@ retry: cap->implemented = 0; cap->mds = mds; cap->mds_wanted = 0; + cap->mseq = 0; cap->ci = ci; __insert_cap_node(ci, cap); @@ -628,7 +629,10 @@ retry: cap->cap_id = cap_id; cap->issued = issued; cap->implemented |= issued; - cap->mds_wanted |= wanted; + if (mseq > cap->mseq) + cap->mds_wanted = wanted; + else + cap->mds_wanted |= wanted; cap->seq = seq; cap->issue_seq = seq; cap->mseq = mseq; -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
