As suggested by Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Robert P. J. Day <rpjday@mindspring.com>
         * so we need to supply one here. It doesn't happen often.
         */
        if (unlikely(page->index)) {
-               kaddr = kmap_atomic(page, KM_USER0);
-               memset(kaddr, 0, PAGE_CACHE_SIZE);
-               kunmap_atomic(kaddr, KM_USER0);
-               flush_dcache_page(page);
-               SetPageUptodate(page);
+               zero_user_page(page, 0, PAGE_CACHE_SIZE, KM_USER0);
                return 0;
        }