Re: Kernel thread removal

[Christoph Hellwig <hch@infradead.org>]

On Thu, Feb 23, 2006 at 01:00:34AM +0800, James Yu wrote:
> How do I remove a kernel thread in kernel mode ?
> I write a C-function in one of the Linux source files and create a
> kernel thread by invoking kernel_thread() to run the function, like:
> "kernel_thread(a1, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGNAL);"
> Function a1 simply invokes printk() to output some message on console.
> I invoke do_exit(0); at the end of a1, but a1's task_struct still
> exists in in task_struct list after its execution.
> How do I remove it a1's task_struct upon its completion? I thought
> explicitly invoke do_exit() ensures the removal of task_struct?

Please use the kthread_ api.  See include/linux/kthread.h and kernel/kthread.c
for details, or grep for kthread_ to find users.