config FS_ENCRYPTION
  	tristate "FS Encryption (Per-file encryption)"
  	depends on BLOCK
  	select CRYPTO
  	select CRYPTO_AES
  	select CRYPTO_CBC
  	select CRYPTO_ECB
  	select CRYPTO_XTS
  	select CRYPTO_CTS
  	select CRYPTO_CTR
  	select CRYPTO_SHA256
  	select KEYS
  	select ENCRYPTED_KEYS
  	help
  	  Enable encryption of files and directories.  This
  	  feature is similar to ecryptfs, but it is more memory
  	  efficient since it avoids caching the encrypted and
  	  decrypted pages in the page cache.