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diff -urN linux-2.6.21.1.old/fs/jffs2/build.c linux-2.6.21.1.dev/fs/jffs2/build.c
--- linux-2.6.21.1.old/fs/jffs2/build.c 2007-04-27 23:49:26.000000000 +0200
+++ linux-2.6.21.1.dev/fs/jffs2/build.c 2007-05-26 20:52:04.425726968 +0200
@@ -105,6 +105,17 @@
dbg_fsbuild("scanned flash completely\n");
jffs2_dbg_dump_block_lists_nolock(c);
+ 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, -1);
+ printk("done.\n");
+ }
+
dbg_fsbuild("pass 1 starting\n");
c->flags |= JFFS2_SB_FLAG_BUILDING;
/* Now scan the directory tree, increasing nlink according to every dirent found. */
diff -urN linux-2.6.21.1.old/fs/jffs2/scan.c linux-2.6.21.1.dev/fs/jffs2/scan.c
--- linux-2.6.21.1.old/fs/jffs2/scan.c 2007-04-27 23:49:26.000000000 +0200
+++ linux-2.6.21.1.dev/fs/jffs2/scan.c 2007-05-26 20:52:04.491716936 +0200
@@ -142,9 +142,12 @@
/* reset summary info for next eraseblock scan */
jffs2_sum_reset_collected(s);
-
- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
- buf_size, s);
+
+ if (c->flags & (1 << 7))
+ ret = BLK_STATE_ALLFF;
+ else
+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
+ buf_size, s);
if (ret < 0)
goto out;
@@ -545,6 +548,17 @@
return err;
}
+ if ((buf[0] == 0xde) &&
+ (buf[1] == 0xad) &&
+ (buf[2] == 0xc0) &&
+ (buf[3] == 0xde)) {
+ /* end of filesystem. erase everything after this point */
+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
+ c->flags |= (1 << 7);
+
+ return BLK_STATE_ALLFF;
+ }
+
/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
ofs = 0;
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