diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq_work.c | 11 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 3 |
2 files changed, 13 insertions, 1 deletions
diff --git a/kernel/irq_work.c b/kernel/irq_work.c index 64eddd59ed8..b3c113a1472 100644 --- a/kernel/irq_work.c +++ b/kernel/irq_work.c @@ -99,6 +99,17 @@ bool irq_work_queue(struct irq_work *work) } EXPORT_SYMBOL_GPL(irq_work_queue); +bool irq_work_needs_cpu(void) +{ + struct llist_head *this_list; + + this_list = &__get_cpu_var(irq_work_list); + if (llist_empty(this_list)) + return false; + + return true; +} + /* * Run the irq_work entries on this cpu. Requires to be ran from hardirq * context with local IRQs disabled. diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 9e945aa090a..f249e8c3e58 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -20,6 +20,7 @@ #include <linux/profile.h> #include <linux/sched.h> #include <linux/module.h> +#include <linux/irq_work.h> #include <asm/irq_regs.h> @@ -289,7 +290,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, } while (read_seqretry(&xtime_lock, seq)); if (rcu_needs_cpu(cpu, &rcu_delta_jiffies) || printk_needs_cpu(cpu) || - arch_needs_cpu(cpu)) { + arch_needs_cpu(cpu) || irq_work_needs_cpu()) { next_jiffies = last_jiffies + 1; delta_jiffies = 1; } else { |