ceph: make sure request isn't in any waiting list when kicking request.

we may corrupt waiting list if a request in the waiting list is kicked.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 267ba4496dc8..a17fc49c9948 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2078,6 +2078,7 @@ static void kick_requests(struct ceph_mds_client *mdsc, int mds)
                 if (req->r_session &&
                     req->r_session->s_mds == mds) {
                         dout(" kicking tid %llu\n", req->r_tid);
+                        list_del_init(&req->r_wait);
                         __do_request(mdsc, req);
                 }
         }