1/*
 2 * JFFS2 -- Journalling Flash File System, Version 2.
 3 *
 4 * Copyright © 2001-2007 Red Hat, Inc.
 5 *
 6 * Created by David Woodhouse <dwmw2@infradead.org>
 7 *
 8 * For licensing information, see the file 'LICENCE' in this directory.
 9 *
10 */
11
12#include <linux/kernel.h>
13#include <linux/mtd/mtd.h>
14#include "nodelist.h"
15
16int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
17			      unsigned long count, loff_t to, size_t *retlen)
18{
19	if (!jffs2_is_writebuffered(c)) {
20		if (jffs2_sum_active()) {
21			int res;
22			res = jffs2_sum_add_kvec(c, vecs, count, (uint32_t) to);
23			if (res) {
24				return res;
25			}
26		}
27	}
28
29	return mtd_writev(c->mtd, vecs, count, to, retlen);
30}
31
32int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
33			size_t *retlen, const u_char *buf)
34{
35	int ret;
36	ret = mtd_write(c->mtd, ofs, len, retlen, buf);
37
38	if (jffs2_sum_active()) {
39		struct kvec vecs[1];
40		int res;
41
42		vecs[0].iov_base = (unsigned char *) buf;
43		vecs[0].iov_len = len;
44
45		res = jffs2_sum_add_kvec(c, vecs, 1, (uint32_t) ofs);
46		if (res) {
47			return res;
48		}
49	}
50	return ret;
51}

 1/*
 2 * JFFS2 -- Journalling Flash File System, Version 2.
 3 *
 4 * Copyright © 2001-2007 Red Hat, Inc.
 5 *
 6 * Created by David Woodhouse <dwmw2@infradead.org>
 7 *
 8 * For licensing information, see the file 'LICENCE' in this directory.
 9 *
10 */
11
12#include <linux/kernel.h>
13#include <linux/mtd/mtd.h>
14#include "nodelist.h"
15
16int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
17			      unsigned long count, loff_t to, size_t *retlen)
18{
19	if (!jffs2_is_writebuffered(c)) {
20		if (jffs2_sum_active()) {
21			int res;
22			res = jffs2_sum_add_kvec(c, vecs, count, (uint32_t) to);
23			if (res) {
24				return res;
25			}
26		}
27	}
28
29	return mtd_writev(c->mtd, vecs, count, to, retlen);
30}
31
32int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
33			size_t *retlen, const u_char *buf)
34{
35	int ret;
36	ret = mtd_write(c->mtd, ofs, len, retlen, buf);
37
38	if (jffs2_sum_active()) {
39		struct kvec vecs[1];
40		int res;
41
42		vecs[0].iov_base = (unsigned char *) buf;
43		vecs[0].iov_len = len;
44
45		res = jffs2_sum_add_kvec(c, vecs, 1, (uint32_t) ofs);
46		if (res) {
47			return res;
48		}
49	}
50	return ret;
51}