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ceph: flush cap releases when the session is flushed

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commit e7d84c6a1296d059389f7342d9b4b7defb518d3a upstream.

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 <xiubli@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiubo Li 2023-02-07 13:04:52 +08:00 • committed by Greg Kroah-Hartman
commit bb3187311e
1 changed files with 6 additions and 0 deletions
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6
fs/ceph/mds_client.c
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@ -3151,6 +3151,12 @@ 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;