diff options
| author | Jeff Layton <jlayton@redhat.com> | 2017-02-14 10:09:40 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-15 09:57:13 +0800 |
| commit | 05a9143edb47e7799f191f1015f56eb2dacfee0d (patch) | |
| tree | a574c75a3bc317ab35479f7aa78a3bdf57866a2b /fs | |
| parent | 485171b1ee8c7cc74cff9881b92b178b1c709663 (diff) | |
ceph: remove req from unsafe list when unregistering it
commit df963ea8a082d31521a120e8e31a29ad8a1dc215 upstream.
There's no reason a request should ever be on a s_unsafe list but not
in the request tree.
Link: http://tracker.ceph.com/issues/18474
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/mds_client.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 239bc9cba28c..f54f77037d22 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -644,6 +644,9 @@ static void __unregister_request(struct ceph_mds_client *mdsc, { dout("__unregister_request %p tid %lld\n", req, req->r_tid); + /* Never leave an unregistered request on an unsafe list! */ + list_del_init(&req->r_unsafe_item); + if (req->r_tid == mdsc->oldest_tid) { struct rb_node *p = rb_next(&req->r_node); mdsc->oldest_tid = 0; @@ -1051,7 +1054,6 @@ static void cleanup_session_requests(struct ceph_mds_client *mdsc, while (!list_empty(&session->s_unsafe)) { req = list_first_entry(&session->s_unsafe, struct ceph_mds_request, r_unsafe_item); - list_del_init(&req->r_unsafe_item); pr_warn_ratelimited(" dropping unsafe request %llu\n", req->r_tid); __unregister_request(mdsc, req); @@ -2477,7 +2479,6 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) * useful we could do with a revised return value. */ dout("got safe reply %llu, mds%d\n", tid, mds); - list_del_init(&req->r_unsafe_item); /* last unsafe request during umount? */ if (mdsc->stopping && !__get_oldest_req(mdsc)) |