target/linux/generic/patches-2.6.32/041-ext4_do_not_override_ext23.patch

   1 From a214238d3bb03723f820b0a398928d8e1637c987 Mon Sep 17 00:00:00 2001
   2 From: Theodore Ts'o <tytso@mit.edu>
   3 Date: Wed, 9 Dec 2009 21:09:58 -0500
   4 Subject: [PATCH] ext4: Do not override ext2 or ext3 if built they are built as modules
   5
   6 The CONFIG_EXT4_USE_FOR_EXT23 option must not try to take over the
   7 ext2 or ext3 file systems if the those file system drivers are
   8 configured to be built as mdoules.
   9
  10 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
  11 ---
  12  fs/ext4/Kconfig |    2 +-
  13  fs/ext4/super.c |    4 ++--
  14  2 files changed, 3 insertions(+), 3 deletions(-)
  15
  16 --- a/fs/ext4/Kconfig
  17 +++ b/fs/ext4/Kconfig
  18 @@ -28,7 +28,7 @@ config EXT4_FS
  19
  20  config EXT4_USE_FOR_EXT23
  21         bool "Use ext4 for ext2/ext3 file systems"
  22 -       depends on !EXT3_FS || !EXT2_FS
  23 +       depends on EXT3_FS=n || EXT2_FS=n
  24         default y
  25         help
  26           Allow the ext4 file system driver code to be used for ext2 or
  27 --- a/fs/ext4/super.c
  28 +++ b/fs/ext4/super.c
  29 @@ -3989,7 +3989,7 @@ static int ext4_get_sb(struct file_syste
  30         return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
  31  }
  32
  33 -#if !defined(CONTIG_EXT2_FS) && defined(CONFIG_EXT4_USE_FOR_EXT23)
  34 +#if !defined(CONTIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
  35  static struct file_system_type ext2_fs_type = {
  36         .owner          = THIS_MODULE,
  37         .name           = "ext2",
  38 @@ -4015,7 +4015,7 @@ static inline void register_as_ext2(void
  39  static inline void unregister_as_ext2(void) { }
  40  #endif
  41
  42 -#if !defined(CONTIG_EXT3_FS) && defined(CONFIG_EXT4_USE_FOR_EXT23)
  43 +#if !defined(CONTIG_EXT3_FS) && !defined(CONFIG_EXT3_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
  44  static struct file_system_type ext3_fs_type = {
  45         .owner          = THIS_MODULE,
  46         .name           = "ext3",