From cd808deced431b66b5fa4e5c193cb7ec0059eaff Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Fri, 24 Oct 2014 00:14:37 +0200
Subject: [PATCH] ext4: support RENAME_WHITEOUT

Add whiteout support to ext4_rename().  A whiteout inode (chrdev/0,0) is
created before the rename takes place.  The whiteout inode is added to the
old entry instead of deleting it.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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