函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\cpuset.c Create Date:2022-07-27 12:18:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：pdate_tasks_cpumask - Update the cpumasks of tasks in the cpuset.*@cs: the cpuset in which each task's cpus_allowed mask needs to be changed* Iterate through each task of @cs updating its cpus_allowed to the* effective cpuset's

函数原型：static void update_tasks_cpumask(struct cpuset *cs)

返回类型：void

参数：

类型参数名称
struct cpuset *cs
1036  ss_task_iter_start - initiate task iteration*@css: the css to walk tasks of*@flags: CSS_TASK_ITER_* flags*@it: the task iterator to use* Initiate iteration through the tasks of @css
1037  当task等于ss_task_iter_next - return the next task for the iterator*@it: the task iterator being iterated* The "next" function for task iteration. @it should have been* initialized via css_task_iter_start(). Returns NULL when the iteration* reaches the end.循环
1038  set_cpus_allowed_ptr(task, effective CPUs and Memory Nodes allow to tasks )
1039  ss_task_iter_end - finish task iteration*@it: the task iterator to finish* Finish task iteration started by css_task_iter_start().
调用者
名称描述
update_cpumasks_hierpdate_cpumasks_hier - Update effective cpumasks and tasks in the subtree*@cs: the cpuset to consider*@tmp: temp variables for calculating effective_cpus & partition setup* When congifured cpumask is changed, the effective cpumasks of this cpuset
update_prstatepdate_prstate - update partititon_root_state* Call with cpuset_mutex held.
hotplug_update_tasks_legacy
hotplug_update_tasks