diff options
| author | Amitay Isaacs <amitay@gmail.com> | 2014-09-10 18:14:24 +1000 |
|---|---|---|
| committer | Martin Schwenke <martins@samba.org> | 2014-09-11 11:31:10 +0200 |
| commit | 4e5a6b154e1549e959c5de4b58432e33c0d57b55 (patch) | |
| tree | f944a1a20c162eb7c3eeb064f1fbcab80611b952 /ctdb/server/ctdb_lock_helper.c | |
| parent | e6127a9eceb215e421ee56c09032bb1e81c8131e (diff) | |
| download | samba-4e5a6b154e1549e959c5de4b58432e33c0d57b55.tar.gz | |
ctdb-locking: Set real-time priority for lock helpers
To avoid lock helper starvation when userspace robust mutexes are
enabled.
Commit 6f072f85a138f595494dbec137bcf23d1e666acc removed reset_scheduler(),
to avoid resetting scheduler priority. However, that is not sufficient
because of commit 1be8564e553ce044426dbe7b3987edf514832940, 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
Diffstat (limited to 'ctdb/server/ctdb_lock_helper.c')
| -rw-r--r-- | ctdb/server/ctdb_lock_helper.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ctdb/server/ctdb_lock_helper.c b/ctdb/server/ctdb_lock_helper.c index 9e7535983e2..13764c64630 100644 --- a/ctdb/server/ctdb_lock_helper.c +++ b/ctdb/server/ctdb_lock_helper.c @@ -123,6 +123,8 @@ int main(int argc, char *argv[]) exit(1); } + set_scheduler(); + ppid = atoi(argv[1]); write_fd = atoi(argv[2]); lock_type = argv[3]; |