diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 8df7456..805a166 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: scan.c,v 1.124 2005/09/21 13:05:22 dedekind Exp $
+ * $Id: scan.c,v 1.125 2005/09/30 13:59:13 dedekind Exp $
  *
  */
 #include <linux/kernel.h>
@@ -233,12 +233,12 @@
 		c->nextblock->dirty_size = 0;
 	}
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size & (c->wbuf_pagesize-1))) {
+	if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
 		/* If we're going to start writing into a block which already 
 		   contains data, and the end of the data isn't page-aligned,
 		   skip a little and align it. */
 
-		uint32_t skip = c->nextblock->free_size & (c->wbuf_pagesize-1);
+		uint32_t skip = c->nextblock->free_size % c->wbuf_pagesize;
 
 		D1(printk(KERN_DEBUG "jffs2_scan_medium(): Skipping %d bytes in nextblock to ensure page alignment\n",
 			  skip));