is_global_init(9) [centos man page]

IS_GLOBAL_INIT(9)						   Driver Basics						 IS_GLOBAL_INIT(9)

NAME

       is_global_init - check if a task structure is init

SYNOPSIS

       int is_global_init(struct task_struct * tsk);

ARGUMENTS

       tsk
	   Task structure to be checked.

DESCRIPTION

       Check if a task structure is the first user space task the kernel created.

RETURN

       1 if the task structure is init. 0 otherwise.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							 IS_GLOBAL_INIT(9)

kernel_thread_w_arg(9r) 												   kernel_thread_w_arg(9r)

NAME

       kernel_thread_w_arg - General: Starts a kernel thread with a calling argument passed in

SYNOPSIS

       thread_t kernel_thread_w_arg(
	       task_t task,
	       void (*start) (void),
	       void* argument );

ARGUMENTS

       Specifies  a  pointer to a task structure.  This pointer identifies the task in which the kernel_thread_w_arg routine starts the newly cre-
       ated kernel thread.  Specifies a pointer to a routine that is the entry point for the newly created kernel thread.  Specifies the  argument
       that kernel_thread_w_arg passes to the entry point specified in start.

DESCRIPTION

       The  kernel_thread_w_arg  routine  creates  and	starts a kernel thread in the specified task at the specified entry point with a specified
       argument. The kernel_thread_w_arg routine passes the specified argument to the newly created kernel thread.  The  kernel_thread_w_arg  rou-
       tine  creates and starts a kernel thread with timeshare scheduling. A kernel thread created with timeshare scheduling means that its prior-
       ity degrades if it consumes an inordinate amount of CPU resources.  A kernel module should call kernel_thread_w_arg only  for  long-running
       tasks. A kernel module should always attach a kernel thread to the ``first task.''

NOTES

       This routine is actually a convenience wrapper for the thread_create routine (which creates the kernel thread) and the thread_start routine
       (which starts the newly created kernel thread).

       The kernel_thread_w_arg routine behaves identically to kernel_isrthread except that with kernel_thread_w_arg you can pass  an  argument	to
       the entry point for the newly created kernel thread.

RETURN VALUES

       Upon  successful completion, kernel_thread_w_arg returns a pointer to the thread structure associated with the kernel thread started at the
       specified entry point. Kernel modules can use this pointer as a handle to a specific kernel thread in calls to other kernel threads-related
       routines.

SEE ALSO

       Routines: kernel_isrthread(9r), thread_create(9r), thread_start(9r)

       Data Structures: task(9s), thread(9s)

															   kernel_thread_w_arg(9r)