diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 3fdf90a7074d..34b6c31eca3a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -10431,6 +10431,20 @@ void sched_mm_cid_fork(struct task_struct *t) WARN_ON_ONCE(!t->mm || t->mm_cid.cid != MM_CID_UNSET); t->mm_cid.active = 1; } + +void mm_init_cid(struct mm_struct *mm, struct task_struct *p) +{ + struct mm_cid_pcpu __percpu *pcpu = mm->mm_cid.pcpu; + int cpu; + + for_each_possible_cpu(cpu) + per_cpu_ptr(pcpu, cpu)->cid = MM_CID_UNSET; + + mm->mm_cid.nr_cpus_allowed = p->nr_cpus_allowed; + raw_spin_lock_init(&mm->mm_cid.lock); + cpumask_copy(mm_cpus_allowed(mm), &p->cpus_mask); + bitmap_zero(mm_cidmask(mm), num_possible_cpus()); +} #else /* CONFIG_SCHED_MM_CID */ static inline void mm_update_cpus_allowed(struct mm_struct *mm, const struct cpumask *affmsk) { } #endif /* !CONFIG_SCHED_MM_CID */ |