函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\legacy_freezer.c Create Date:2022-07-27 12:16:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：zer_apply_state - apply state change to a single cgroup_freezer*@freezer: freezer to apply state change to*@freeze: whether to freeze or unfreeze*@state: CGROUP_FREEZING_* flag to set or clear* Set or clear @state on @cgroup according to @freeze, and

函数原型：static void freezer_apply_state(struct freezer *freezer, bool freeze, unsigned int state)

返回类型：void

参数：

类型参数名称
struct freezer *freezer
boolfreeze
unsigned intstate
353  lockdep_assert_held( & freezer_mutex)
355  如果非state按位与zer is fully online 的值则返回
358  如果freeze则
359  如果非state按位与CGROUP_FREEZING的值则atomic_inc( & al number of freezing conditions in effect )
361  state或等于state
362  freeze_cgroup(freezer)
363  否则
364  was_freezing等于state按位与CGROUP_FREEZING
366  state与等于state的反
368  如果非state按位与CGROUP_FREEZING的值则
369  如果was_freezing则atomic_dec( & al number of freezing conditions in effect )
371  state与等于his and its descendants frozen 的反
372  unfreeze_cgroup(freezer)
调用者
名称描述
freezer_change_statezer_change_state - change the freezing state of a cgroup_freezer*@freezer: freezer of interest*@freeze: whether to freeze or thaw* Freeze or thaw @freezer according to @freeze. The operations are* recursive - all descendants of @freezer will be affected.