[PATCH] m68k: introduce setup_thread_stack() and end_of_stack()

encapsulates the rest of arch-dependent operations with thread_info access.
Two new helpers - setup_thread_stack() and end_of_stack().  For normal case
the former consists of copying thread_info of parent to new thread_info and
the latter returns pointer immediately past the end of thread_info.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro 2005-11-13 16:06:56 -08:00 committed by Linus Torvalds
parent a1261f5461
commit 10ebffde3d
3 changed files with 14 additions and 4 deletions

View file

@ -4327,10 +4327,10 @@ static void show_task(task_t *p)
#endif
#ifdef CONFIG_DEBUG_STACK_USAGE
{
unsigned long *n = (unsigned long *) (p->thread_info+1);
unsigned long *n = end_of_stack(p);
while (!*n)
n++;
free = (unsigned long) n - (unsigned long)(p->thread_info+1);
free = (unsigned long)n - (unsigned long)end_of_stack(p);
}
#endif
printk("%5lu %5d %6d ", free, p->pid, p->parent->pid);