How to add the first element in a list of type struct list_head

[Vincenzo Mallozzi <vinjunior@xxxxxxxx>]

Hi,
I've another (perhaps the last) problem with the creation of dynamic linked 
list with the <linux/list.h> macros.
I simplify the structures I use to better explain the problem.

struct pages{
 struct list_head list;
 unsigned long address;
};

struct vma{
 ..........
 .........
 struct pages *pages;
}

what's the way I add the first element?
I prove two ways:
WAY 1.
 struct pages *page;

 page = kmalloc(.......);
 INIT_LIST_HEAD (&pages->list);
 for all memory pages P do
   P->address = 0x....;
   list_add(&P->list, &pages->list);

WAY 2.
 struct vma *vm;

 ..............
 
 for all memory pages P do
   if P is the first memory page then
     P->address = 0x...;
     INIT_LIST_HEAD(&(vm->pages)->list);
     list_add(&P->list, &(vm->pages)->list);
   else
     list_add(&P->list, &(vm->pages)->list);

In each of the two ways all elements (pages) but the first one are store in 
the list.
Someone know why?
Thanks.
Vincenzo Mallozzi.

P.S. I hope my description is understandable.

		
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