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authorYan, Zheng <ukernel@gmail.com>2014-09-11 14:25:18 +0800
committerJiri Slaby <jslaby@suse.cz>2015-11-14 18:57:08 +0100
commit3057240acb6d1cc2f41d27f80f4a35bc85d949ae (patch)
treee25c8287eafcfe0e5e99a1bb02f6e73f1352c3a7
parentfcd082c0640d0f8eef3d0d2a17a62c9446a77cf2 (diff)
ceph: protect kick_requests() with mdsc->mutex
commit 656e4382948d4b2c81bdaf707f1400f53eff2625 upstream. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Sage Weil <sage@redhat.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-rw-r--r--fs/ceph/mds_client.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 3e07f82a3c9d..16c7e4ab94f0 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2389,9 +2389,8 @@ static void handle_session(struct ceph_mds_session *session,
if (session->s_state == CEPH_MDS_SESSION_RECONNECTING)
pr_info("mds%d reconnect denied\n", session->s_mds);
remove_session_caps(session);
- wake = 1; /* for good measure */
+ wake = 2; /* for good measure */
wake_up_all(&mdsc->session_close_wq);
- kick_requests(mdsc, mds);
break;
case CEPH_SESSION_STALE:
@@ -2417,6 +2416,8 @@ static void handle_session(struct ceph_mds_session *session,
if (wake) {
mutex_lock(&mdsc->mutex);
__wake_requests(mdsc, &session->s_waiting);
+ if (wake == 2)
+ kick_requests(mdsc, mds);
mutex_unlock(&mdsc->mutex);
}
return;