X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Frmap.c;h=450f5241b5a525282ae7eb150fe322423b01e570;hb=3b30bbd963ac2606b0377b39c9d148d6eeef7dce;hp=7e975ca24c788334b6d266443c1de2b823636bdb;hpb=2822c1aa574d277b9ba0130b1e71c1a5874bc04a;p=linux-2.6

diff --git a/mm/rmap.c b/mm/rmap.c
index 7e975ca24c..450f5241b5 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -445,16 +445,12 @@ void page_add_anon_rmap(struct page *page,
 
 	if (atomic_inc_and_test(&page->_mapcount)) {
 		struct anon_vma *anon_vma = vma->anon_vma;
-		pgoff_t index;
 
 		BUG_ON(!anon_vma);
 		anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
 		page->mapping = (struct address_space *) anon_vma;
 
-		index = (address - vma->vm_start) >> PAGE_SHIFT;
-		index += vma->vm_pgoff;
-		index >>= PAGE_CACHE_SHIFT - PAGE_SHIFT;
-		page->index = index;
+		page->index = linear_page_index(vma, address);
 
 		inc_page_state(nr_mapped);
 	}