--- 2.2.15/mm/filemap.c	Thu May  4 13:00:40 2000
+++ /tmp/filemap.c	Thu May  4 17:11:18 2000
@@ -68,7 +68,7 @@
 
 	p = &inode->i_pages;
 	while ((page = *p) != NULL) {
-		if (PageLocked(page)) {
+		if (PageLocked(page) || atomic_read(&page->count) > 1) {
 			p = &page->next;
 			continue;
 		}