ldiskfs/kernel_patches/patches/ext3-big-endian-check-2.6-suse.patch

   1 Index: linux-2.6.5-7.312/fs/ext3/super.c
   2 ===================================================================
   3 --- linux-2.6.5-7.312.orig/fs/ext3/super.c
   4 +++ linux-2.6.5-7.312/fs/ext3/super.c
   5 @@ -84,6 +84,8 @@ handle_t *ext3_journal_start(struct inod
   6         return journal_start(journal, nblocks);
   7  }
   8
   9 +static int bigendian_extents;
  10 +
  11  /*
  12   * The only special thing we need to do here is to make sure that all
  13   * journal_stop calls result in the superblock being marked dirty, so
  14 @@ -601,7 +603,7 @@ enum {
  15         Opt_ignore, Opt_barrier,
  16         Opt_err,
  17         Opt_iopen, Opt_noiopen, Opt_iopen_nopriv,
  18 -       Opt_extents, Opt_noextents, Opt_extdebug,
  19 +       Opt_extents, Opt_noextents, Opt_bigendian_extents, Opt_extdebug,
  20         Opt_mballoc, Opt_nomballoc, Opt_stripe,
  21  };
  22
  23 @@ -649,6 +651,7 @@ static match_table_t tokens = {
  24         {Opt_iopen_nopriv, "iopen_nopriv"},
  25         {Opt_extents, "extents"},
  26         {Opt_noextents, "noextents"},
  27 +       {Opt_bigendian_extents, "bigendian_extents"},
  28         {Opt_extdebug, "extdebug"},
  29         {Opt_barrier, "barrier=%u"},
  30         {Opt_mballoc, "mballoc"},
  31 @@ -886,6 +889,9 @@ static int parse_options (char * options
  32                 case Opt_noextents:
  33                         clear_opt (sbi->s_mount_opt, EXTENTS);
  34                         break;
  35 +               case Opt_bigendian_extents:
  36 +                       bigendian_extents = 1;
  37 +                       break;
  38                 case Opt_extdebug:
  39                         set_opt (sbi->s_mount_opt, EXTDEBUG);
  40                         break;
  41 @@ -1450,6 +1456,16 @@ static int ext3_fill_super (struct super
  42                             0))
  43                 goto failed_mount;
  44
  45 +#ifdef __BIG_ENDIAN
  46 +       if (bigendian_extents == 0) {
  47 +               printk(KERN_ERR "EXT3-fs: e2fsck is not guaranteed to work "
  48 +                      "correctly on the filesystem if EXTENTS feature is "
  49 +                      "used on big-endian systems. Use \"bigendian_extents\" "
  50 +                      "mount option to override.\n");
  51 +               goto failed_mount;
  52 +       }
  53 +#endif
  54 +
  55         sb->s_flags |= MS_ONE_SECOND;
  56         sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
  57                 ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);