config ROMFS_FS
  	tristate "ROM file system support"

  	depends on BLOCK || MTD

  	---help---
  	  This is a very small read-only file system mainly intended for
  	  initial ram disks of installation disks, but it could be used for
  	  other read-only media as well.  Read
  	  <file:Documentation/filesystems/romfs.txt> for details.
  
  	  To compile this file system support as a module, choose M here: the
  	  module will be called romfs.  Note that the file system of your
  	  root partition (the one containing the directory /) cannot be a
  	  module.
  
  	  If you don't know whether you need it, then you don't need it:
  	  answer N.

  #
  # Select the backing stores to be supported
  #
  choice
  	prompt "RomFS backing stores"
  	depends on ROMFS_FS
  	default ROMFS_BACKED_BY_BLOCK
  	help
  	  Select the backing stores to be supported.
  
  config ROMFS_BACKED_BY_BLOCK
  	bool "Block device-backed ROM file system support"
  	depends on BLOCK

  	help
  	  This permits ROMFS to use block devices buffered through the page
  	  cache as the medium from which to retrieve data.  It does not allow
  	  direct mapping of the medium.
  
  	  If unsure, answer Y.

  config ROMFS_BACKED_BY_MTD

  	bool "MTD-backed ROM file system support"

  	depends on MTD=y || (ROMFS_FS=m && MTD)
  	help
  	  This permits ROMFS to use MTD based devices directly, without the
  	  intercession of the block layer (which may have been disabled).  It
  	  also allows direct mapping of MTD devices through romfs files under
  	  NOMMU conditions if the underlying device is directly addressable by
  	  the CPU.
  
  	  If unsure, answer Y.

  config ROMFS_BACKED_BY_BOTH
  	bool "Both the above"
  	depends on BLOCK && (MTD=y || (ROMFS_FS=m && MTD))
  endchoice
  
  
  config ROMFS_ON_BLOCK
  	bool
  	default y if ROMFS_BACKED_BY_BLOCK || ROMFS_BACKED_BY_BOTH
  
  config ROMFS_ON_MTD
  	bool
  	default y if ROMFS_BACKED_BY_MTD || ROMFS_BACKED_BY_BOTH