函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\percpu-refcount.c Create Date:2022-07-27 07:22:02
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：percpu_ref_switch_to_atomic - switch a percpu_ref to atomic mode*@ref: percpu_ref to switch to atomic mode*@confirm_switch: optional confirmation callback* There's no reason to use this function for the usual reference counting.

函数原型：void percpu_ref_switch_to_atomic(struct percpu_ref *ref, percpu_ref_func_t *confirm_switch)

返回类型：void

参数：

类型参数名称
struct percpu_ref *ref
percpu_ref_func_t *confirm_switch
266  spin_lock_irqsave( & percpu_ref_switch_lock, flags)
268  force_atomic = true
269  __percpu_ref_switch_mode(ref, confirm_switch)
271  spin_unlock_irqrestore( & percpu_ref_switch_lock, flags)
调用者
名称描述
percpu_ref_switch_to_atomic_syncpercpu_ref_switch_to_atomic_sync - switch a percpu_ref to atomic mode*@ref: percpu_ref to switch to atomic mode* Schedule switching the ref to atomic mode, and wait for the* switch to complete. Caller must ensure that no other thread