lockd: fix races that can result in stuck filelocks
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2063818
A set of patches currently queued up for v6.5 that fix some race conditions vs. client-side signals that could result in stuck locks on the server. Also fixes an annoying log message that can pop at shutdown, adds new tracepoints, and does some associated cleanup.
Signed-off-by: Jeffrey Layton jlayton@redhat.com
Edited by Jeffrey Layton