/*
* 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>
int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
unsigned long count, loff_t to, size_t *retlen)
{
+ 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 (c->mtd->writev)
return c->mtd->writev(c->mtd, vecs, count, to, retlen);
- else
+ else {
return mtd_fake_writev(c->mtd, vecs, count, to, retlen);
+ }
}
+int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ int ret;
+ ret = c->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;
+}