percpu_ref_is

函数名称：percpu_ref_is_dying - test whether a percpu refcount is dying or dead*@ref: percpu_ref to test* Returns %true if @ref is dying or dead.* This function is safe to call as long as @ref is between init and exit

函数原型：static inline bool percpu_ref_is_dying(struct percpu_ref *ref)

返回类型：bool

参数：

类型	参数	名称
struct percpu_ref *	ref

**调用者**
名称	描述
cgroup_kill_sb
cgroup_lock_and_drain_offline	group_lock_and_drain_offline - lock cgroup_mutex and drain offlined csses@cgrp: root of the target subtree Because css offlining is asynchronous, userland may try to re-enable a* controller while the previous css is still around. This function grabs
cgroup_apply_control_enable	group_apply_control_enable - enable or show csses according to control@cgrp: root of the target subtree Walk @cgrp's subtree and create new csses or make the existing ones* visible. A css is created invisible if it's being implicitly enabled
cgroup_apply_control_disable	group_apply_control_disable - kill or hide csses according to control@cgrp: root of the target subtree Walk @cgrp's subtree and kill and hide csses so that they match* cgroup_ss_mask() and cgroup_visible_mask()
cgroup1_get_tree
io_sq_thread
__io_uring_register
css_is_dying	ss_is_dying - test whether the specified css is dying@css: target css Test whether @css is in the process of offlining or already offline

函数逻辑报告