1 files changed, 31 insertions, 30 deletions

diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c
index f079f838856..a1bda9dab3f 100644
--- a/fs/jffs2/writev.c
+++ b/fs/jffs2/writev.c
@@ -1,50 +1,51 @@
 /*
  * JFFS2 -- Journalling Flash File System, Version 2.
  *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
+ * Copyright © 2001-2007 Red Hat, Inc.
  *
  * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: writev.c,v 1.6 2004/11/16 20:36:12 dwmw2 Exp $
- *
  */
 
 #include <linux/kernel.h>
 #include <linux/mtd/mtd.h>
 #include "nodelist.h"
 
-/* This ought to be in core MTD code. All registered MTD devices
-   without writev should have this put in place. Bug the MTD
-   maintainer */
-static inline int mtd_fake_writev(struct mtd_info *mtd, const struct kvec *vecs,
-				  unsigned long count, loff_t to, size_t *retlen)
+int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
+			      unsigned long count, loff_t to, size_t *retlen)
 {
-	unsigned long i;
-	size_t totlen = 0, thislen;
-	int ret = 0;
-
-	for (i=0; i<count; i++) {
-		if (!vecs[i].iov_len)
-			continue;
-		ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
-		totlen += thislen;
-		if (ret || thislen != vecs[i].iov_len)
-			break;
-		to += vecs[i].iov_len;
+	if (!jffs2_is_writebuffered(c)) {
+		if (jffs2_sum_active()) {
+			int res;
+			res = jffs2_sum_add_kvec(c, vecs, count, (uint32_t) to);
+			if (res) {
+				return res;
+			}
+		}
 	}
-	if (retlen)
-		*retlen = totlen;
-	return ret;
+
+	return mtd_writev(c->mtd, vecs, count, to, retlen);
 }
 
-int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
-			      unsigned long count, loff_t to, size_t *retlen)
+int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
+			size_t *retlen, const u_char *buf)
 {
-	if (c->mtd->writev)
-		return c->mtd->writev(c->mtd, vecs, count, to, retlen);
-	else
-		return mtd_fake_writev(c->mtd, vecs, count, to, retlen);
-}
+	int ret;
+	ret = mtd_write(c->mtd, ofs, len, retlen, buf);
+
+	if (jffs2_sum_active()) {
+		struct kvec vecs[1];
+		int res;
+
+		vecs[0].iov_base = (unsigned char *) buf;
+		vecs[0].iov_len = len;
 
+		res = jffs2_sum_add_kvec(c, vecs, 1, (uint32_t) ofs);
+		if (res) {
+			return res;
+		}
+	}
+	return ret;
+}