[PATCH] eCryptfs: Remove ecryptfs_umount_begin

There is no point to calling the lower umount_begin when the eCryptfs
umount_begin is called.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/ecryptfs/super.c

@@ -137,23 +137,6 @@ static void ecryptfs_clear_inode(struct inode *inode)
 	iput(ecryptfs_inode_to_lower(inode));
 }
 
-/**
- * ecryptfs_umount_begin
- *
- * Called in do_umount().
- */
-static void ecryptfs_umount_begin(struct vfsmount *vfsmnt, int flags)
-{
-	struct vfsmount *lower_mnt =
-		ecryptfs_dentry_to_lower_mnt(vfsmnt->mnt_sb->s_root);
-	struct super_block *lower_sb;
-
-	mntput(lower_mnt);
-	lower_sb = lower_mnt->mnt_sb;
-	if (lower_sb->s_op->umount_begin)
-		lower_sb->s_op->umount_begin(lower_mnt, flags);
-}
-
 /**
  * ecryptfs_show_options
  *
@@ -193,6 +176,5 @@ struct super_operations ecryptfs_sops = {
 	.statfs = ecryptfs_statfs,
 	.remount_fs = NULL,
 	.clear_inode = ecryptfs_clear_inode,
-	.umount_begin = ecryptfs_umount_begin,
 	.show_options = ecryptfs_show_options
 };