ext4: drop ext4dev compat

Kconfig & super.c promised it'd be gone by 2.6.31, so it's
about time to drop it.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index d5c0ea2..9f2d45d 100644 (file)
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -26,20 +26,6 @@ config EXT4_FS
 
          If unsure, say N.
 
-config EXT4DEV_COMPAT
-       bool "Enable ext4dev compatibility"
-       depends on EXT4_FS
-       help
-         Starting with 2.6.28, the name of the ext4 filesystem was
-         renamed from ext4dev to ext4.  Unfortunately there are some
-         legacy userspace programs (such as klibc's fstype) have
-         "ext4dev" hardcoded.
-
-         To enable backwards compatibility so that systems that are
-         still expecting to mount ext4 filesystems using ext4dev,
-         choose Y here.   This feature will go away by 2.6.31, so
-         please arrange to get your userspace programs fixed!
-
 config EXT4_FS_XATTR
        bool "Ext4 extended attributes"
        depends on EXT4_FS

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 12e726a..312211e 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3966,27 +3966,6 @@ static struct file_system_type ext4_fs_type = {
        .fs_flags       = FS_REQUIRES_DEV,
 };
 
-#ifdef CONFIG_EXT4DEV_COMPAT
-static int ext4dev_get_sb(struct file_system_type *fs_type, int flags,
-                         const char *dev_name, void *data,struct vfsmount *mnt)
-{
-       printk(KERN_WARNING "EXT4-fs (%s): Update your userspace programs "
-              "to mount using ext4\n", dev_name);
-       printk(KERN_WARNING "EXT4-fs (%s): ext4dev backwards compatibility "
-              "will go away by 2.6.31\n", dev_name);
-       return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
-}
-
-static struct file_system_type ext4dev_fs_type = {
-       .owner          = THIS_MODULE,
-       .name           = "ext4dev",
-       .get_sb         = ext4dev_get_sb,
-       .kill_sb        = kill_block_super,
-       .fs_flags       = FS_REQUIRES_DEV,
-};
-MODULE_ALIAS("ext4dev");
-#endif
-
 static int __init init_ext4_fs(void)
 {
        int err;
@@ -4011,13 +3990,6 @@ static int __init init_ext4_fs(void)
        err = register_filesystem(&ext4_fs_type);
        if (err)
                goto out;
-#ifdef CONFIG_EXT4DEV_COMPAT
-       err = register_filesystem(&ext4dev_fs_type);
-       if (err) {
-               unregister_filesystem(&ext4_fs_type);
-               goto out;
-       }
-#endif
        return 0;
 out:
        destroy_inodecache();
@@ -4036,9 +4008,6 @@ out4:
 static void __exit exit_ext4_fs(void)
 {
        unregister_filesystem(&ext4_fs_type);
-#ifdef CONFIG_EXT4DEV_COMPAT
-       unregister_filesystem(&ext4dev_fs_type);
-#endif
        destroy_inodecache();
        exit_ext4_xattr();
        exit_ext4_mballoc();