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sched,psi: Convert to sched_set_fifo_low() 

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.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
This commit is contained in:
Peter Zijlstra 2020-04-21 12:09:13 +02:00
parent ce1c8afd3f
commit 2cca5426b9
1 changed files with 1 additions and 4 deletions
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5
kernel/sched/psi.c
View File

@ -616,11 +616,8 @@ out:
static int psi_poll_worker(void *data) static int psi_poll_worker(void *data)
{ {
struct psi_group *group = (struct psi_group *)data; struct psi_group *group = (struct psi_group *)data;
struct sched_param param = {
.sched_priority = 1,
};
sched_setscheduler_nocheck(current, SCHED_FIFO, &param); sched_set_fifo_low(current);
while (true) { while (true) {
wait_event_interruptible(group->poll_wait, wait_event_interruptible(group->poll_wait,