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Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull scheduler fix from Ingo Molnar:
 "An autogroup nice level adjustment bug fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/autogroup: Fix 64-bit kernel nice level adjustment
This commit is contained in:
Linus Torvalds 2016-12-07 11:35:55 -08:00
parent bf7f1c7e2f 83929cce95
commit 68f5503bdc
1 changed files with 3 additions and 1 deletions
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4
kernel/sched/auto_group.c
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@ -212,6 +212,7 @@ int proc_sched_autogroup_set_nice(struct task_struct *p, int nice)
{
static unsigned long next = INITIAL_JIFFIES;
struct autogroup *ag;
unsigned long shares;
int err;
if (nice < MIN_NICE || nice > MAX_NICE)
@ -230,9 +231,10 @@ int proc_sched_autogroup_set_nice(struct task_struct *p, int nice)
next = HZ / 10 + jiffies;
ag = autogroup_task_get(p);
shares = scale_load(sched_prio_to_weight[nice + 20]);
down_write(&ag->lock);
err = sched_group_set_shares(ag->tg, sched_prio_to_weight[nice + 20]);
err = sched_group_set_shares(ag->tg, shares);
if (!err)
ag->nice = nice;
up_write(&ag->lock);