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

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4060 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic-2.6/patches/204-jffs2_eofdetect.patch b/target/linux/generic-2.6/patches/204-jffs2_eofdetect.patch
index b93efa6..9f248c9 100644 (file)
--- a/target/linux/generic-2.6/patches/204-jffs2_eofdetect.patch
+++ b/target/linux/generic-2.6/patches/204-jffs2_eofdetect.patch
@@ -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;