函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-cgroup.c Create Date:2022-07-27 19:15:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：blkcg_css_free

函数原型：static void blkcg_css_free(struct cgroup_subsys_state *css)

返回类型：void

参数：

类型参数名称
struct cgroup_subsys_state *css
925  blkcg等于css_to_blkcg(css)
928  mutex_lock( & blkcg_pol_mutex)
930  删除链表项
932  以i小于Maximum number of blkcg policies allowed to be registered concurrently.* Defined here to simplify include dependency.循环如果cpd[i]则
934  cpd_free_fn(cpd[i])
936  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
938  释放内存