X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=include%2Flinux%2Fpagemap.h;h=62db6b0176b95782666e5e1a7369dea10715ed6d;hp=5dcf446f42e5ad6c83c2c2eb3c93bdc61392f026;hb=2d338201d5311bcd79d42f66df4cecbcbc5f4f2c;hpb=cc09ee80c3b18ae1a897a30a17fe710b2b2f620a

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 5dcf446f42e5..62db6b0176b9 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -521,18 +521,17 @@ static inline struct page *read_mapping_page(struct address_space *mapping,
  */
 static inline pgoff_t page_to_index(struct page *page)
 {
-	pgoff_t pgoff;
+	struct page *head;
 
 	if (likely(!PageTransTail(page)))
 		return page->index;
 
+	head = compound_head(page);
 	/*
 	 *  We don't initialize ->index for tail pages: calculate based on
 	 *  head page
 	 */
-	pgoff = compound_head(page)->index;
-	pgoff += page - compound_head(page);
-	return pgoff;
+	return head->index + page - head;
 }
 
 extern pgoff_t hugetlb_basepage_index(struct page *page);