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ctdb-locking: Set real-time priority for lock helpers
To avoid lock helper starvation when userspace robust mutexes are enabled. Commit6f072f85a1
removed reset_scheduler(), to avoid resetting scheduler priority. However, that is not sufficient because of commit1be8564e55
, which sets SCHED_RESET_ON_FORK flag. With SCHED_RESET_ON_FORK, all CTDB child processes will automatically have normal scheduling priority. Signed-off-by: Amitay Isaacs <amitay@gmail.com> Reviewed-by: Martin Schwenke <martin@meltin.net> Autobuild-User(master): Martin Schwenke <martins@samba.org> Autobuild-Date(master): Thu Sep 11 11:31:10 CEST 2014 on sn-devel-104
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parent
e6127a9ece
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@ -123,6 +123,8 @@ int main(int argc, char *argv[])
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exit(1);
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}
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set_scheduler();
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ppid = atoi(argv[1]);
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write_fd = atoi(argv[2]);
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lock_type = argv[3];
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