On Tue, 2023-02-07 at 13:04 +0800, xiubli@xxxxxxxxxx wrote: > From: Xiubo Li <xiubli@xxxxxxxxxx> > > MDS expects the completed cap release prior to responding to the > session flush for cache drop. > > Cc: <stable@xxxxxxxxxx> > URL: http://tracker.ceph.com/issues/38009 > Cc: Patrick Donnelly <pdonnell@xxxxxxxxxx> > Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx> > --- > fs/ceph/mds_client.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c > index 3c9d3f609e7f..51366bd053de 100644 > --- a/fs/ceph/mds_client.c > +++ b/fs/ceph/mds_client.c > @@ -4039,6 +4039,12 @@ static void handle_session(struct ceph_mds_session *session, > break; > > case CEPH_SESSION_FLUSHMSG: > + /* flush cap release */ > + spin_lock(&session->s_cap_lock); > + if (session->s_num_cap_releases) > + ceph_flush_cap_releases(mdsc, session); > + spin_unlock(&session->s_cap_lock); > + > send_flushmsg_ack(mdsc, session, seq); > break; > Ouch! Good catch! Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
