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.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 IS_GLOBAL_INIT(9)
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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)
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