函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\notify\inotify\inotify_user.c Create Date:2022-07-29 10:49:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：inotify_update_watch

函数原型：static int inotify_update_watch(struct fsnotify_group *group, struct inode *inode, unsigned int arg)

返回类型：int

参数：

类型参数名称
struct fsnotify_group *group
struct inode *inode
unsigned intarg
610  ret等于0
612  mutex_lock( & protect marks_list )
614  ret等于inotify_update_existing_watch(group, inode, arg)
616  如果ret恒等于负ENOENT则ret等于inotify_new_watch(group, inode, arg)
618  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.
620  返回:ret
调用者
名称描述
SYSCALL_DEFINE3