lockd: ratelimit "lockd: cannot monitor" messages
When lockd can't talk to a remote statd, it'll spew a warning message to the ring buffer. If the application is really hammering on locks however, it's possible for that message to spam the logs. Ratelimit it to minimize the potential for harm. Reported-by: NIan Collier <imc@cs.ox.ac.uk> Signed-off-by: NJeff Layton <jlayton@primarydata.com> Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
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