[PATCH] ext4: drop ext4dev compat

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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@xxxxxxxxxx>
---

diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index d5c0ea2..9f2d45d 100644
--- 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 a6b1ab7..f20c2d1 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3951,27 +3951,6 @@ 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;
@@ -3996,13 +3975,6 @@ 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();
@@ -4021,9 +3993,6 @@ 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();

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