| Date | Wed, 22 Apr 2020 13:27:39 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 20/23] sched,rcutorture: Convert to sched_set_fifo_low() |
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Because SCHED_FIFO is a broken scheduler model (see previous patches) take away the priority field, the kernel can't possibly make an informed decision.
Effectively no change.
Cc: paulmck@kernel.org Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> --- kernel/rcu/rcutorture.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
--- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -802,13 +802,11 @@ static int rcu_torture_boost(void *arg) unsigned long endtime; unsigned long oldstarttime; struct rcu_boost_inflight rbi = { .inflight = 0 }; - struct sched_param sp; VERBOSE_TOROUT_STRING("rcu_torture_boost started"); /* Set real-time priority. */ - sp.sched_priority = 1; - if (sched_setscheduler(current, SCHED_FIFO, &sp) < 0) { + if (sched_set_fifo_low(current) < 0) { VERBOSE_TOROUT_STRING("rcu_torture_boost RT prio failed!"); n_rcu_torture_boost_rterror++; }
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