mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-19 19:13:08 +02:00
f3016ce71f
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11213 3c298f89-4303-0410-b956-a3cf2f4a3e73
100 lines
3.0 KiB
Diff
100 lines
3.0 KiB
Diff
Index: linux-2.4.35.4/fs/jffs2/build.c
|
|
===================================================================
|
|
--- linux-2.4.35.4.orig/fs/jffs2/build.c
|
|
+++ linux-2.4.35.4/fs/jffs2/build.c
|
|
@@ -31,6 +31,10 @@
|
|
* provisions above, a recipient may use your version of this file
|
|
* under either the RHEPL or the GPL.
|
|
*
|
|
+ * Modification for automatically cleaning the filesystem after
|
|
+ * a specially marked block
|
|
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
|
|
+ *
|
|
* $Id: build.c,v 1.16.2.3 2003/04/30 09:43:32 dwmw2 Exp $
|
|
*
|
|
*/
|
|
@@ -38,6 +42,7 @@
|
|
#include <linux/kernel.h>
|
|
#include <linux/jffs2.h>
|
|
#include <linux/slab.h>
|
|
+#include <linux/mtd/mtd.h>
|
|
#include "nodelist.h"
|
|
|
|
int jffs2_build_inode_pass1(struct jffs2_sb_info *, struct jffs2_inode_cache *);
|
|
@@ -89,6 +94,18 @@ int jffs2_build_filesystem(struct jffs2_
|
|
if (ret)
|
|
return ret;
|
|
|
|
+ if (c->flags & (1 << 7)) {
|
|
+ printk("%s(): unlocking the mtd device... ", __func__);
|
|
+ if (c->mtd->unlock)
|
|
+ c->mtd->unlock(c->mtd, 0, c->mtd->size);
|
|
+ printk("done.\n");
|
|
+
|
|
+ printk("%s(): erasing all blocks after the end marker... ", __func__);
|
|
+ jffs2_erase_pending_blocks(c);
|
|
+ jffs2_mark_erased_blocks(c);
|
|
+ printk("done.\n");
|
|
+ }
|
|
+
|
|
D1(printk(KERN_DEBUG "Scanned flash completely\n"));
|
|
/* Now build the data map for each inode, marking obsoleted nodes
|
|
as such, and also increase nlink of any children. */
|
|
Index: linux-2.4.35.4/fs/jffs2/scan.c
|
|
===================================================================
|
|
--- linux-2.4.35.4.orig/fs/jffs2/scan.c
|
|
+++ linux-2.4.35.4/fs/jffs2/scan.c
|
|
@@ -31,6 +31,10 @@
|
|
* provisions above, a recipient may use your version of this file
|
|
* under either the RHEPL or the GPL.
|
|
*
|
|
+ * Modification for automatically cleaning the filesystem after
|
|
+ * a specially marked block
|
|
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
|
|
+ *
|
|
* $Id: scan.c,v 1.51.2.4 2003/11/02 13:51:18 dwmw2 Exp $
|
|
*
|
|
*/
|
|
@@ -88,7 +92,12 @@ int jffs2_scan_medium(struct jffs2_sb_in
|
|
for (i=0; i<c->nr_blocks; i++) {
|
|
struct jffs2_eraseblock *jeb = &c->blocks[i];
|
|
|
|
- ret = jffs2_scan_eraseblock(c, jeb);
|
|
+
|
|
+ if (c->flags & (1 << 7))
|
|
+ ret = 1;
|
|
+ else
|
|
+ ret = jffs2_scan_eraseblock(c, jeb);
|
|
+
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
@@ -181,6 +190,7 @@ static int jffs2_scan_eraseblock (struct
|
|
|
|
while(ofs < jeb->offset + c->sector_size) {
|
|
ssize_t retlen;
|
|
+ unsigned char *buf = (unsigned char *) &node;
|
|
ACCT_PARANOIA_CHECK(jeb);
|
|
|
|
if (ofs & 3) {
|
|
@@ -202,8 +212,18 @@ static int jffs2_scan_eraseblock (struct
|
|
break;
|
|
}
|
|
|
|
- err = c->mtd->read(c->mtd, ofs, sizeof(node), &retlen, (char *)&node);
|
|
+ err = c->mtd->read(c->mtd, ofs, sizeof(node), &retlen, buf);
|
|
+ if ((buf[0] == 0xde) &&
|
|
+ (buf[1] == 0xad) &&
|
|
+ (buf[2] == 0xc0) &&
|
|
+ (buf[3] == 0xde)) {
|
|
+
|
|
+ /* end of filesystem. erase everything after this point */
|
|
+ c->flags |= (1 << 7);
|
|
+ printk("jffs2_scan_eraseblock(): End of filesystem marker found at 0x%x\n", jeb->offset);
|
|
|
|
+ return 1;
|
|
+ }
|
|
if (err) {
|
|
D1(printk(KERN_WARNING "mtd->read(0x%x bytes from 0x%x) returned %d\n", sizeof(node), ofs, err));
|
|
return err;
|