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authorPhilipp Reisner <philipp.reisner@linbit.com>2013-03-27 14:08:48 +0100
committerJens Axboe <axboe@kernel.dk>2013-03-28 10:10:25 -0600
commit3990e04df085e0561ab34f84731dc5929585c526 (patch)
treecc61156879176cc6e014cba76938fba7d3e53ed6 /drivers/block/drbd/drbd_receiver.c
parent7c689e63a847316c1b2500f86891b0a574ce7e69 (diff)
downloadvexpress-lsk-3990e04df085e0561ab34f84731dc5929585c526.tar.gz
drbd: use sched_setscheduler()
It was unnoticed for some time that assigning to current->policy is no longer sufficient to set a real time priority for a kernel thread. Reported-by: Charlie Suffin <Charlie.Suffin@stratus.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/drbd/drbd_receiver.c')
-rw-r--r--drivers/block/drbd/drbd_receiver.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index a75c0b13485..0f449bbf0ed 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -5257,9 +5257,11 @@ int drbd_asender(struct drbd_thread *thi)
bool ping_timeout_active = false;
struct net_conf *nc;
int ping_timeo, tcp_cork, ping_int;
+ struct sched_param param = { .sched_priority = 2 };
- current->policy = SCHED_RR; /* Make this a realtime task! */
- current->rt_priority = 2; /* more important than all other tasks */
+ rv = sched_setscheduler(current, SCHED_RR, &param);
+ if (rv < 0)
+ conn_err(tconn, "drbd_asender: ERROR set priority, ret=%d\n", rv);
while (get_t_state(thi) == RUNNING) {
drbd_thread_current_set_cpu(thi);