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sched,mmc: Convert to sched_set_fifo*()

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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.

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

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Peter Zijlstra 2020-04-21 12:09:13 +02:00
parent 73f73cc243
commit f8ec806be1
1 changed files with 1 additions and 2 deletions
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3
drivers/mmc/core/sdio_irq.c
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@ -139,11 +139,10 @@ EXPORT_SYMBOL_GPL(sdio_signal_irq);
static int sdio_irq_thread(void *_host)
{
struct mmc_host *host = _host;
struct sched_param param = { .sched_priority = 1 };
unsigned long period, idle_period;
int ret;
sched_setscheduler(current, SCHED_FIFO, &param);
sched_set_fifo_low(current);
/*
* We want to allow for SDIO cards to work even on non SDIO