task_work

函数名称：ask_work_add - ask the @task to execute @work->func()*@task: the task which should run the callback*@work: the callback to run*@notify: send the notification if true* Queue @work for task_work_run() below and notify the @task if @notify.

函数原型：int task_work_add(struct task_struct *task, struct callback_head *work, bool notify)

返回类型：int

参数：

类型	参数	名称
struct task_struct *	task
struct callback_head *	work
bool	notify

循环

head等于READ_ONCE(回调队列)

如果此条件成立可能性小(为编译器优化)(head == & all we need is ->next == NULL )则返回:负ESRCH

next等于head

当cmpxchg( & 回调队列, head, work)不等于head 循环

如果notify则set_notify_resume - cause tracehook_notify_resume() to be called*@task: task that will call tracehook_notify_resume()* Calling this arranges that @task will call tracehook_notify_resume()* before returning to user mode

返回:0

**调用者**
名称	描述
irq_thread	Interrupt handler thread
uprobe_copy_process	复制上下文
report_access	defers execution because cmdline access can sleep
mntput_no_expire
__rdtgroup_move_task
keyctl_session_to_parent	Attempt to install the calling process's session keyring on the process's* parent process.* The keyring must exist and must grant the caller LINK permission, and the* parent process must be single-threaded and must have the same effective
fput_many

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告