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There several other patches in aufs3.
They are all optional. When you meet some problems, they will help you. You 
can find them in the documentation directory.

	- aufs3-loopback.patch
	  Supports a nested loopback mount in a branch-fs. This patch is
	  unnecessary until aufs produces a message such like "you may want to try
	  another patch for loopback file".

	- vfs-ino.patch
	  Modifies a system global kernel internal function get_next_ino() in
	  order to stop assigning 0 for an inode-number. Not directly related to
	  aufs, but recommended generally.

	- tmpfs-ibitmap.patch/tmpfs-idr.patch
	  Keeps the tmpfs inode number as the lowest value. Effective to reduce
	  the size of aufs XINO files for tmpfs branch. Also it prevents the
	  duplication of inode number, which is important for backup
	  tools, aubrsync or other utilities. When you find aufs XINO files for
	  tmpfs branch growing too much, try this patch.