linux/2.6.32: R.I.P.

[openwrt/openwrt.git] / target / linux / generic / patches-2.6.32 / 040-use_ext4_for_ext23.patch

diff --git a/target/linux/generic/patches-2.6.32/040-use_ext4_for_ext23.patch b/target/linux/generic/patches-2.6.32/040-use_ext4_for_ext23.patch
deleted file mode 100644 (file)
index db2fc38..0000000
--- a/target/linux/generic/patches-2.6.32/040-use_ext4_for_ext23.patch
+++ /dev/null
@@ -1,123 +0,0 @@
-From 24b584240a0006ea7436cd35f5e8983eb76f1e6f Mon Sep 17 00:00:00 2001
-From: Theodore Ts'o <tytso@mit.edu>
-Date: Mon, 7 Dec 2009 14:08:51 -0500
-Subject: [PATCH] ext4: Use ext4 file system driver for ext2/ext3 file system mounts
-
-Add a new config option, CONFIG_EXT4_USE_FOR_EXT23 which if enabled,
-will cause ext4 to be used for either ext2 or ext3 file system mounts
-when ext2 or ext3 is not enabled in the configuration.
-
-This allows minimalist kernel fanatics to drop to file system drivers
-from their compiled kernel with out losing functionality.
-
-Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
----
- fs/ext4/Kconfig |   10 +++++++++
- fs/ext4/super.c |   58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
- 2 files changed, 68 insertions(+), 0 deletions(-)
-
---- a/fs/ext4/Kconfig
-+++ b/fs/ext4/Kconfig
-@@ -26,6 +26,16 @@ config EXT4_FS
- 
-         If unsure, say N.
- 
-+config EXT4_USE_FOR_EXT23
-+      bool "Use ext4 for ext2/ext3 file systems"
-+      depends on !EXT3_FS || !EXT2_FS
-+      default y
-+      help
-+        Allow the ext4 file system driver code to be used for ext2 or
-+        ext3 file system mounts.  This allows users to reduce their
-+        compiled kernel size by using one file system driver for
-+        ext2, ext3, and ext4 file systems.
-+
- config EXT4_FS_XATTR
-       bool "Ext4 extended attributes"
-       depends on EXT4_FS
---- a/fs/ext4/super.c
-+++ b/fs/ext4/super.c
-@@ -3994,6 +3994,58 @@ static int ext4_get_sb(struct file_syste
-       return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
- }
- 
-+#if !defined(CONTIG_EXT2_FS) && defined(CONFIG_EXT4_USE_FOR_EXT23)
-+static struct file_system_type ext2_fs_type = {
-+      .owner          = THIS_MODULE,
-+      .name           = "ext2",
-+      .get_sb         = ext4_get_sb,
-+      .kill_sb        = kill_block_super,
-+      .fs_flags       = FS_REQUIRES_DEV,
-+};
-+
-+static inline void register_as_ext2(void)
-+{
-+      int err = register_filesystem(&ext2_fs_type);
-+      if (err)
-+              printk(KERN_WARNING
-+                     "EXT4-fs: Unable to register as ext2 (%d)\n", err);
-+}
-+
-+static inline void unregister_as_ext2(void)
-+{
-+      unregister_filesystem(&ext2_fs_type);
-+}
-+#else
-+static inline void register_as_ext2(void) { }
-+static inline void unregister_as_ext2(void) { }
-+#endif
-+
-+#if !defined(CONTIG_EXT3_FS) && defined(CONFIG_EXT4_USE_FOR_EXT23)
-+static struct file_system_type ext3_fs_type = {
-+      .owner          = THIS_MODULE,
-+      .name           = "ext3",
-+      .get_sb         = ext4_get_sb,
-+      .kill_sb        = kill_block_super,
-+      .fs_flags       = FS_REQUIRES_DEV,
-+};
-+
-+static inline void register_as_ext3(void)
-+{
-+      int err = register_filesystem(&ext3_fs_type);
-+      if (err)
-+              printk(KERN_WARNING
-+                     "EXT4-fs: Unable to register as ext3 (%d)\n", err);
-+}
-+
-+static inline void unregister_as_ext3(void)
-+{
-+      unregister_filesystem(&ext3_fs_type);
-+}
-+#else
-+static inline void register_as_ext3(void) { }
-+static inline void unregister_as_ext3(void) { }
-+#endif
-+
- static struct file_system_type ext4_fs_type = {
-       .owner          = THIS_MODULE,
-       .name           = "ext4",
-@@ -4024,11 +4076,15 @@ static int __init init_ext4_fs(void)
-       err = init_inodecache();
-       if (err)
-               goto out1;
-+      register_as_ext2();
-+      register_as_ext3();
-       err = register_filesystem(&ext4_fs_type);
-       if (err)
-               goto out;
-       return 0;
- out:
-+      unregister_as_ext2();
-+      unregister_as_ext3();
-       destroy_inodecache();
- out1:
-       exit_ext4_xattr();
-@@ -4044,6 +4100,8 @@ out4:
- 
- static void __exit exit_ext4_fs(void)
- {
-+      unregister_as_ext2();
-+      unregister_as_ext3();
-       unregister_filesystem(&ext4_fs_type);
-       destroy_inodecache();
-       exit_ext4_xattr();