/* mm->page_table_lock is held. mmap_sem is not held */
static inline int swap_out_vma(struct mm_struct * mm, struct vm_area_struct * vma, unsigned long address, int count, zone_t * classzone)
{
pgd_t *pgdir;
unsigned long end;
/* Don't swap out areas which are reserved */
if (vma->vm_flags & VM_RESERVED)
return count;
pgdir = pgd_offset(mm, address);
end = vma->vm_end;
if (address >= end)
BUG();
do {
count = swap_out_pgd(mm, vma, pgdir, address, end, count, classzone);
if (!count)
break;
/* lock depth can be 1 or 2 */
if (conditional_schedule_needed())
return count;
address = (address + PGDIR_SIZE) & PGDIR_MASK;
pgdir++;
} while (address && (address < end));
return count;
}
static int swap_out_vma(struct mm_struct * mm, struct vm_area_struct * vma, unsigned long address, int gfp_mask)
{
pgd_t *pgdir;
unsigned long end;
/* Don't swap out areas which are locked down */
if (vma->vm_flags & (VM_LOCKED|VM_RESERVED))
return 0;
pgdir = pgd_offset(mm, address);
end = vma->vm_end;
if (address >= end)
BUG();
do {
int result = swap_out_pgd(mm, vma, pgdir, address, end, gfp_mask);
if (result)
return result;
if (!mm->swap_cnt)
return 0;
address = (address + PGDIR_SIZE) & PGDIR_MASK;
pgdir++;
} while (address && (address < end));
return 0;
}