Commit 0030c1d4 authored Apr 21, 2020 by Peter Zijlstra

sched,bL_switcher: Convert to sched_set_fifo*()



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.

In this case, use fifo_low, because it only cares about being above
SCHED_NORMAL. Effectively no change in behaviour.

Cc: rmk+kernel@arm.linux.org.uk
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>

parent 7318d4cc

arch/arm/common/bL_switcher.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -270,12 +270,11 @@ static struct bL_thread bL_threads[NR_CPUS];
		static int bL_switcher_thread(void *arg)
		{
		struct bL_thread *t = arg;
		struct sched_param param = { .sched_priority = 1 };
		int cluster;
		bL_switch_completion_handler completer;
		void *completer_cookie;

		sched_setscheduler_nocheck(current, SCHED_FIFO, &param);
		sched_set_fifo_low(current);
		complete(&t->started);

		do {

Admin message