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Merge tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull sched/fifo updates from Ingo Molnar:
 "This adds the sched_set_fifo*() encapsulation APIs to remove static
  priority level knowledge from non-scheduler code.

  The three APIs for non-scheduler code to set SCHED_FIFO are:

   - sched_set_fifo()
   - sched_set_fifo_low()
   - sched_set_normal()

  These are two FIFO priority levels: default (high), and a 'low'
  priority level, plus sched_set_normal() to set the policy back to
  non-SCHED_FIFO.

  Since the changes affect a lot of non-scheduler code, we kept this in
  a separate tree"

* tag 'sched-fifo-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  sched,tracing: Convert to sched_set_fifo()
  sched: Remove sched_set_*() return value
  sched: Remove sched_setscheduler*() EXPORTs
  sched,psi: Convert to sched_set_fifo_low()
  sched,rcutorture: Convert to sched_set_fifo_low()
  sched,rcuperf: Convert to sched_set_fifo_low()
  sched,locktorture: Convert to sched_set_fifo()
  sched,irq: Convert to sched_set_fifo()
  sched,watchdog: Convert to sched_set_fifo()
  sched,serial: Convert to sched_set_fifo()
  sched,powerclamp: Convert to sched_set_fifo()
  sched,ion: Convert to sched_set_normal()
  sched,powercap: Convert to sched_set_fifo*()
  sched,spi: Convert to sched_set_fifo*()
  sched,mmc: Convert to sched_set_fifo*()
  sched,ivtv: Convert to sched_set_fifo*()
  sched,drm/scheduler: Convert to sched_set_fifo*()
  sched,msm: Convert to sched_set_fifo*()
  sched,psci: Convert to sched_set_fifo*()
  sched,drbd: Convert to sched_set_fifo*()
  ...
This commit is contained in:
Linus Torvalds
2020-08-06 11:55:43 -07:00
parent 4cec929370 4fd5750af0
commit 6d2b84a4e5
25 changed files with 100 additions and 124 deletions
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5
drivers/block/drbd/drbd_receiver.c
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@@ -6019,11 +6019,8 @@ int drbd_ack_receiver(struct drbd_thread *thi)
unsigned int header_size = drbd_header_size(connection);
int expect = header_size;
bool ping_timeout_active = false;
struct sched_param param = { .sched_priority = 2 };
rv = sched_setscheduler(current, SCHED_RR, &param);
if (rv < 0)
drbd_err(connection, "drbd_ack_receiver: ERROR set priority, ret=%d\n", rv);
sched_set_fifo_low(current);
while (get_t_state(thi) == RUNNING) {
drbd_thread_current_set_cpu(thi);