+static inline int io_remap_pud_range(pud_t * pud, unsigned long address, unsigned long size,
+ unsigned long offset, pgprot_t prot, int space)
+{
+ unsigned long end;
+
+ address &= ~PUD_MASK;
+ end = address + size;
+ if (end > PUD_SIZE)
+ end = PUD_SIZE;
+ offset -= address;
+ do {
+ pmd_t *pmd = pmd_alloc(current->mm, pud, address);
+ if (!pud)
+ return -ENOMEM;
+ io_remap_pmd_range(pmd, address, end - address, address + offset, prot, space);
+ address = (address + PUD_SIZE) & PUD_MASK;
+ pud++;
+ } while (address < end);
+ return 0;
+}
+