From e7d84c6a1296d059389f7342d9b4b7defb518d3a Mon Sep 17 00:00:00 2001 From: Xiubo Li Date: Tue, 7 Feb 2023 13:04:52 +0800 Subject: [PATCH] ceph: flush cap releases when the session is flushed MDS expects the completed cap release prior to responding to the session flush for cache drop. Cc: stable@vger.kernel.org Link: http://tracker.ceph.com/issues/38009 Signed-off-by: Xiubo Li Reviewed-by: Venky Shankar Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- 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 e163f58ff3c5..27a245d959c0 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -3685,6 +3685,12 @@ static void handle_session(struct ceph_mds_session *session, break; case CEPH_SESSION_FLUSHMSG: + /* flush cap releases */ + 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;