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

Pull scheduler fixes from Thomas Gleixner:
 "Two small scheduler fixes:

   - Take hotplug lock in sched_init_smp(). Technically not really
     required, but lockdep will complain other.

   - Trivial comment fix in sched/fair"

* 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix a comment in task_numa_fault()
  sched/core: Take the hotplug lock in sched_init_smp()
hifive-unleashed-5.1
Linus Torvalds 2018-11-11 16:33:00 -06:00
parent 1acf93ca6c e1ff516a56
commit 024d4d4c0c
2 changed files with 6 additions and 3 deletions
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5
kernel/sched/core.c
View File

@ -5851,11 +5851,14 @@ void __init sched_init_smp(void)
/*
* There's no userspace yet to cause hotplug operations; hence all the
* CPU masks are stable and all blatant races in the below code cannot
* happen.
* happen. The hotplug lock is nevertheless taken to satisfy lockdep,
* but there won't be any contention on it.
*/
cpus_read_lock();
mutex_lock(&sched_domains_mutex);
sched_init_domains(cpu_active_mask);
mutex_unlock(&sched_domains_mutex);
cpus_read_unlock();
/* Move init over to a non-isolated CPU */
if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0)

4
kernel/sched/fair.c
View File

@ -2400,8 +2400,8 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
local = 1;
/*
* Retry task to preferred node migration periodically, in case it
* case it previously failed, or the scheduler moved us.
* Retry to migrate task to preferred node periodically, in case it
* previously failed, or the scheduler moved us.
*/
if (time_after(jiffies, p->numa_migrate_retry)) {
task_numa_placement(p);