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fix the jffs2 eof detect patch for linux 2.6 (unlocking required for erasing blocks)

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SVN-Revision: 4060
This commit is contained in:
Felix Fietkau 2006-06-23 19:51:50 +00:00
parent 7158bfb110
commit f7591f99b3
1 changed files with 30 additions and 20 deletions
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50
openwrt/target/linux/generic-2.6/patches/204-jffs2_eofdetect.patch
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@ -1,12 +1,35 @@
diff -ur linux.old/fs/jffs2/scan.c linux.dev/fs/jffs2/scan.c
--- linux.old/fs/jffs2/scan.c 2006-05-31 02:31:44.000000000 +0200
+++ linux.dev/fs/jffs2/scan.c 2006-06-15 02:20:32.000000000 +0200
@@ -120,8 +120,11 @@
diff -urN linux.old/fs/jffs2/build.c linux.dev/fs/jffs2/build.c
--- linux.old/fs/jffs2/build.c 2006-06-18 03:49:35.000000000 +0200
+++ linux.dev/fs/jffs2/build.c 2006-06-23 21:46:48.000000000 +0200
@@ -107,6 +107,17 @@
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.old/fs/jffs2/scan.c linux.dev/fs/jffs2/scan.c
--- linux.old/fs/jffs2/scan.c 2006-06-23 21:39:38.000000000 +0200
+++ linux.dev/fs/jffs2/scan.c 2006-06-23 21:42:18.000000000 +0200
@@ -119,9 +119,12 @@
/* 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
@ -15,20 +38,7 @@ diff -ur linux.old/fs/jffs2/scan.c linux.dev/fs/jffs2/scan.c
if (ret < 0)
goto out;
@@ -222,6 +225,12 @@
}
}
+ if (c->flags & (1 << 7)) {
+ printk("jffs2_scan_medium(): erasing all blocks after the end marker...\n");
+ jffs2_erase_pending_blocks(c, -1);
+ printk("jffs2_scan_medium(): done.\n");
+ }
+
if (jffs2_sum_active() && s)
kfree(s);
@@ -389,6 +398,17 @@
@@ -389,6 +392,17 @@
return err;
}
@ -37,7 +47,7 @@ diff -ur linux.old/fs/jffs2/scan.c linux.dev/fs/jffs2/scan.c
+ (buf[2] == 0xc0) &&
+ (buf[3] == 0xde)) {
+ /* end of filesystem. erase everything after this point */
+ printk("jffs2_scan_eraseblock(): End of filesystem marker found at 0x%x\n", jeb->offset);
+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
+ c->flags |= (1 << 7);
+
+ return BLK_STATE_ALLFF;