函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\cgroup-v1.c Create Date:2022-07-27 12:15:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cgroup_release_agent_write

函数原型：static ssize_t cgroup_release_agent_write(struct kernfs_open_file *of, char *buf, size_t nbytes, loff_t off)

返回类型：ssize_t

参数：

类型参数名称
struct kernfs_open_file *of
char *buf
size_tnbytes
loff_toff
550  BUILD_BUG_ON - break compile if a condition is true( The path to use for release notifications. 的长度 < # chars in a path name including nul )
552  cgrp等于group_kn_lock_live - locking helper for cgroup kernfs methods*@kn: the kernfs_node being serviced*@drain_offline: perform offline draining on the cgroup* This helper is to be used by a cgroup kernfs method currently servicing*@kn
553  如果非cgrp则返回:负ENODEV
555  加自旋锁
556  长字符串复制
558  自旋锁解锁
559  group_kn_unlock - unlocking helper for cgroup kernfs methods*@kn: the kernfs_node being serviced* This helper undoes cgroup_kn_lock_live() and should be invoked before* the method finishes if locking succeeded
560  返回:nbytes