config F2FS_FS

  	tristate "F2FS filesystem support"

  	depends on BLOCK

  	select CRYPTO
  	select CRYPTO_CRC32

  	help
  	  F2FS is based on Log-structured File System (LFS), which supports
  	  versatile "flash-friendly" features. The design has been focused on
  	  addressing the fundamental issues in LFS, which are snowball effect
  	  of wandering tree and high cleaning overhead.
  
  	  Since flash-based storages show different characteristics according to
  	  the internal geometry or flash memory management schemes aka FTL, F2FS
  	  and tools support various parameters not only for configuring on-disk
  	  layout, but also for selecting allocation and cleaning algorithms.
  
  	  If unsure, say N.
  
  config F2FS_STAT_FS
  	bool "F2FS Status Information"
  	depends on F2FS_FS && DEBUG_FS
  	default y
  	help
  	  /sys/kernel/debug/f2fs/ contains information about all the partitions
  	  mounted as f2fs. Each file shows the whole f2fs information.
  
  	  /sys/kernel/debug/f2fs/status includes:

  	    - major filesystem information managed by f2fs currently

  	    - average SIT information about whole segments
  	    - current memory footprint consumed by f2fs.
  
  config F2FS_FS_XATTR
  	bool "F2FS extended attributes"
  	depends on F2FS_FS
  	default y
  	help
  	  Extended attributes are name:value pairs associated with inodes by
  	  the kernel or by users (see the attr(5) manual page, or visit
  	  <http://acl.bestbits.at/> for details).
  
  	  If unsure, say N.
  
  config F2FS_FS_POSIX_ACL
  	bool "F2FS Access Control Lists"
  	depends on F2FS_FS_XATTR
  	select FS_POSIX_ACL
  	default y
  	help
  	  Posix Access Control Lists (ACLs) support permissions for users and

  	  groups beyond the owner/group/world scheme.

  
  	  To learn more about Access Control Lists, visit the POSIX ACLs for
  	  Linux website <http://acl.bestbits.at/>.
  
  	  If you don't know what Access Control Lists are, say N

  
  config F2FS_FS_SECURITY
  	bool "F2FS Security Labels"
  	depends on F2FS_FS_XATTR
  	help
  	  Security labels provide an access control facility to support Linux
  	  Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
  	  Linux. This option enables an extended attribute handler for file
  	  security labels in the f2fs filesystem, so that it requires enabling
  	  the extended attribute support in advance.
  
  	  If you are not using a security module, say N.

  
  config F2FS_CHECK_FS
  	bool "F2FS consistency checking feature"
  	depends on F2FS_FS
  	help

  	  Enables BUG_ONs which check the filesystem consistency in runtime.

  
  	  If you want to improve the performance, say N.

  config F2FS_FS_ENCRYPTION
  	bool "F2FS Encryption"
  	depends on F2FS_FS
  	depends on F2FS_FS_XATTR

  	select FS_ENCRYPTION

  	help
  	  Enable encryption of f2fs 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.

  config F2FS_IO_TRACE
  	bool "F2FS IO tracer"
  	depends on F2FS_FS
  	depends on FUNCTION_TRACER
  	help
  	  F2FS IO trace is based on a function trace, which gathers process
  	  information and block IO patterns in the filesystem level.
  
  	  If unsure, say N.

  
  config F2FS_FAULT_INJECTION
  	bool "F2FS fault injection facility"
  	depends on F2FS_FS
  	help
  	  Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
  
  	  If unsure, say N.