diff options
Diffstat (limited to '')
| -rw-r--r-- | kernel/sched/sched.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 4a44221793cf..9373426d5aae 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -2534,6 +2534,19 @@ extern void sched_balance_trigger(struct rq *rq); extern int __set_cpus_allowed_ptr(struct task_struct *p, struct affinity_context *ctx); extern void set_cpus_allowed_common(struct task_struct *p, struct affinity_context *ctx); +static inline bool task_allowed_on_cpu(struct task_struct *p, int cpu) +{ + /* When not in the task's cpumask, no point in looking further. */ + if (!cpumask_test_cpu(cpu, p->cpus_ptr)) + return false; + + /* Can @cpu run a user thread? */ + if (!(p->flags & PF_KTHREAD) && !task_cpu_possible(cpu, p)) + return false; + + return true; +} + static inline cpumask_t *alloc_user_cpus_ptr(int node) { /* @@ -2567,6 +2580,11 @@ extern int push_cpu_stop(void *arg); #else /* !CONFIG_SMP: */ +static inline bool task_allowed_on_cpu(struct task_struct *p, int cpu) +{ + return true; +} + static inline int __set_cpus_allowed_ptr(struct task_struct *p, struct affinity_context *ctx) { |