函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\cgroup.c Create Date:2022-07-27 12:09:17
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：group_e_css - obtain a cgroup's effective css for the specified subsystem*@cgrp: the cgroup of interest*@ss: the subsystem of interest* Find and get the effective css of @cgrp for @ss

函数原型：struct cgroup_subsys_state *cgroup_e_css(struct cgroup *cgrp, struct cgroup_subsys *ss)

返回类型：struct cgroup_subsys_state

参数：

类型参数名称
struct cgroup *cgrp
struct cgroup_subsys *ss
547  循环
548  css等于group_css - obtain a cgroup's css for the specified subsystem*@cgrp: the cgroup of interest*@ss: the subsystem of interest (%NULL returns @cgrp->self)* Return @cgrp's css (cgroup_subsys_state) associated with @ss
550  如果css则返回:css
552  cgrp等于cgroup_parent(cgrp)
553  当cgrp循环
555  返回:Set of subsystem states, one for each subsystem. This array is* immutable after creation apart from the init_css_set during* subsystem registration (at boot time).[ the following two fields are initialized automtically during boot ]
调用者
名称描述
bio_associate_blkg_from_page_associate_blkg_from_page - associate a bio with the page's blkg*@bio: target bio*@page: the page to lookup the blkcg from* Associate @bio with the blkg from @page's owning memcg and the respective* request_queue