函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\timer.c Create Date:2022-07-27 11:39:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：expire_timers

函数原型：static void expire_timers(struct timer_base *base, struct hlist_head *head)

返回类型：void

参数：

类型参数名称
struct timer_base *base
struct hlist_head *head
1429  baseclk等于clk减1
1431  当非hlist_empty(head)循环
1435  timer等于hlist_entry(first, structtimer_list, entry)
1437  running_timer等于timer
1438  detach_timer(timer, true)
1440  fn等于function
1442  如果flags按位与TIMER_IRQSAFE则
1443  raw_spin_unlock( & lock)
1444  call_timer_fn(timer, fn, baseclk)
1445  running_timer = NULL
1446  raw_spin_lock( & lock)
1447  否则
1448  raw_spin_unlock_irq( & lock)
1449  call_timer_fn(timer, fn, baseclk)
1450  running_timer = NULL
1451  timer_sync_wait_running(base)
1452  关闭本地中断，获取所要保护的运行队列（runqueue）的自旋锁（spinlock），为查找可运行进程做准备。( & lock)
调用者
名称描述
__run_timers__run_timers - run all expired timers (if any) on this CPU.*@base: the timer vector to be processed.