MM: virtual address debug

[net-next-2.6.git] / mm / vmalloc.c

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 6e45b0f3d1256e0bdc3a3caffa74597cf96a5138..dc41e9c8ca6fe6f8ba3d187f70a1f26d57919931 100644 (file)
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -180,6 +180,11 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
        pmd_t *pmd;
        pte_t *ptep, pte;
 
+       /* 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));
+
        if (!pgd_none(*pgd)) {
                pud = pud_offset(pgd, addr);
                if (!pud_none(*pud)) {