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-rw-r--r--fs/ceph/mds_client.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 52d1b538c656..522790c64db4 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3361,9 +3361,14 @@ static void handle_session(struct ceph_mds_session *session,
if (msg_version >= 3) {
u32 len;
- /* version >= 2, metadata */
- if (__decode_session_metadata(&p, end, &blocklisted) < 0)
+ /* version >= 2 and < 5, decode metadata, skip otherwise
+ * as it's handled via flags.
+ */
+ if (msg_version >= 5)
+ ceph_decode_skip_map(&p, end, string, string, bad);
+ else if (__decode_session_metadata(&p, end, &blocklisted) < 0)
goto bad;
+
/* version >= 3, feature bits */
ceph_decode_32_safe(&p, end, len, bad);
if (len) {
@@ -3372,6 +3377,18 @@ static void handle_session(struct ceph_mds_session *session,
}
}
+ if (msg_version >= 5) {
+ u32 flags;
+ /* version >= 4, struct_v, struct_cv, len, metric_spec */
+ ceph_decode_skip_n(&p, end, 2 + sizeof(u32) * 2, bad);
+ /* version >= 5, flags */
+ ceph_decode_32_safe(&p, end, flags, bad);
+ if (flags & CEPH_SESSION_BLOCKLISTED) {
+ pr_warn("mds%d session blocklisted\n", session->s_mds);
+ blocklisted = true;
+ }
+ }
+
mutex_lock(&mdsc->mutex);
if (op == CEPH_SESSION_CLOSE) {
ceph_get_mds_session(session);