Commit 4bb926e8 authored Sep 15, 2020 by Ilya Dryomov

ceph: add a note explaining session reject error string



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
131d7eb4 ("ceph: auto reconnect after blacklisted").

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

parent 1b05fae7

fs/ceph/mds_client.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;

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