The page array is repeatedly indexed both in vunmap and vmalloc_area_node().
Add a temporary variable to make it easier to read (and easier to patch
later).

Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>

---
 mm/vmalloc.c |   16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

Index: linux-2.6/mm/vmalloc.c
===================================================================
--- linux-2.6.orig/mm/vmalloc.c 2007-09-18 13:22:16.000000000 -0700
+++ linux-2.6/mm/vmalloc.c      2007-09-18 13:22:17.000000000 -0700
@@ -383,8 +383,10 @@ static void __vunmap(const void *addr, i
                int i;
 
                for (i = 0; i < area->nr_pages; i++) {
-                       BUG_ON(!area->pages[i]);
-                       __free_page(area->pages[i]);
+                       struct page *page = area->pages[i];
+
+                       BUG_ON(!page);
+                       __free_page(page);
                }
 
                if (area->flags & VM_VPAGES)
@@ -488,15 +490,19 @@ void *__vmalloc_area_node(struct vm_stru
        }
 
        for (i = 0; i < area->nr_pages; i++) {
+               struct page *page;
+
                if (node < 0)
-                       area->pages[i] = alloc_page(gfp_mask);
+                       page = alloc_page(gfp_mask);
                else
-                       area->pages[i] = alloc_pages_node(node, gfp_mask, 0);
-               if (unlikely(!area->pages[i])) {
+                       page = alloc_pages_node(node, gfp_mask, 0);
+
+               if (unlikely(!page)) {
                        /* Successfully allocated i pages, free them in 
__vunmap() */
                        area->nr_pages = i;
                        goto fail;
                }
+               area->pages[i] = page;
        }
 
        if (map_vm_area(area, prot, &pages))

-- 
-
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