error_string key in the metadata map of MClientSession message
is intended for humans, but unfortunately became part of the on-wire
format with the introduction of recover_session=clean mode in commit
131d7eb4faa1 ("ceph: auto reconnect after blacklisted").
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
---
fs/ceph/mds_client.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index bb2d938a17ac..08f1c0c31dc2 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3317,6 +3317,10 @@ static int __decode_session_metadata(void **p, void *end,
*p += len;
ceph_decode_32_safe(p, end, len, bad);
ceph_decode_need(p, end, len, bad);
+ /*
+ * Match "blocklisted (blacklisted)" from newer MDSes,
+ * or "blacklisted" from older MDSes.
+ */
if (err_str && strnstr(*p, "blacklisted", len))
*blocklisted = true;
*p += len;
--
2.19.2
