if (err)
break;
} while (pgd++, addr = next, addr != end);
- flush_cache_vmap((unsigned long) area->addr, end);
- return err;
+ flush_cache_vmap(addr, end);
+
+ if (unlikely(err))
+ return err;
+ return nr;
}
-EXPORT_SYMBOL_GPL(map_vm_area);
+ static inline int is_vmalloc_or_module_addr(const void *x)
+ {
+ /*
+ * x86-64 and sparc64 put modules in a special place,
+ * and fall back on vmalloc() if that fails. Others
+ * just put it in the vmalloc space.
+ */
+ #if defined(CONFIG_MODULES) && defined(MODULES_VADDR)
+ unsigned long addr = (unsigned long)x;
+ if (addr >= MODULES_VADDR && addr < MODULES_END)
+ return 1;
+ #endif
+ return is_vmalloc_addr(x);
+ }
+
/*
- * Map a vmalloc()-space virtual address to the physical page.
+ * Walk a vmap address to the struct page it maps.
*/
struct page *vmalloc_to_page(const void *vmalloc_addr)
{
* XXX we might need to change this if we add VIRTUAL_BUG_ON for
* architectures that do not vmalloc module space
*/
- VIRTUAL_BUG_ON(!is_vmalloc_addr(vmalloc_addr) &&
- !is_module_address(addr));
+ VIRTUAL_BUG_ON(!is_vmalloc_or_module_addr(vmalloc_addr));
if (!pgd_none(*pgd)) {
- pud = pud_offset(pgd, addr);
+ pud_t *pud = pud_offset(pgd, addr);
if (!pud_none(*pud)) {
- pmd = pmd_offset(pud, addr);
+ pmd_t *pmd = pmd_offset(pud, addr);
if (!pmd_none(*pmd)) {
+ pte_t *ptep, pte;
+
ptep = pte_offset_map(pmd, addr);
pte = *ptep;
if (pte_present(pte))