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Kconfig

Kconfig 1.9 KB
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  1. config UBIFS_FS
    2. 

  2. 	tristate "UBIFS file system support"
    3. 

  3. 	select CRC16
    4. 

  4. 	select CRC32
    5. 

  5. 	select CRYPTO if UBIFS_FS_ADVANCED_COMPR
    6. 

  6. 	select CRYPTO if UBIFS_FS_LZO
    7. 

  7. 	select CRYPTO if UBIFS_FS_ZLIB
    8. 

  8. 	select CRYPTO_LZO if UBIFS_FS_LZO
    9. 

  9. 	select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
    10. 

  10. 	depends on MTD_UBI
    11. 

  11. 	help
    12. 

  12. 	  UBIFS is a file system for flash devices which works on top of UBI.
    13. 

  13. 

  14. config UBIFS_FS_XATTR
    15. 

  15. 	bool "Extended attributes support"
    16. 

  16. 	depends on UBIFS_FS
    17. 

  17. 	help
    18. 

  18. 	  This option enables support of extended attributes.
    19. 

  19. 

  20. config UBIFS_FS_ADVANCED_COMPR
    21. 

  21. 	bool "Advanced compression options"
    22. 

  22. 	depends on UBIFS_FS
    23. 

  23. 	help
    24. 

  24. 	  This option allows to explicitly choose which compressions, if any,
    25. 

  25. 	  are enabled in UBIFS. Removing compressors means inability to read
    26. 

  26. 	  existing file systems.
    27. 

  27. 

  28. 	  If unsure, say 'N'.
    29. 

  29. 

  30. config UBIFS_FS_LZO
    31. 

  31. 	bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR
    32. 

  32. 	depends on UBIFS_FS
    33. 

  33. 	default y
    34. 

  34. 	help
    35. 

  35. 	   LZO compressor is generally faster than zlib but compresses worse.
    36. 

  36. 	   Say 'Y' if unsure.
    37. 

  37. 

  38. config UBIFS_FS_ZLIB
    39. 

  39. 	bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR
    40. 

  40. 	depends on UBIFS_FS
    41. 

  41. 	default y
    42. 

  42. 	help
    43. 

  43. 	  Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
    44. 

  44. 

  45. # Debugging-related stuff
    46. 

  46. config UBIFS_FS_DEBUG
    47. 

  47. 	bool "Enable debugging support"
    48. 

  48. 	depends on UBIFS_FS
    49. 

  49. 	select DEBUG_FS
    50. 

  50. 	select KALLSYMS
    51. 

  51. 	help
    52. 

  52. 	  This option enables UBIFS debugging support. It makes sure various
    53. 

  53. 	  assertions, self-checks, debugging messages and test modes are compiled
    54. 

  54. 	  in (this all is compiled out otherwise). Assertions are light-weight
    55. 

  55. 	  and this option also enables them. Self-checks, debugging messages and
    56. 

  56. 	  test modes are switched off by default. Thus, it is safe and actually
    57. 

  57. 	  recommended to have debugging support enabled, and it should not slow
    58. 

  58. 	  down UBIFS. You can then further enable / disable individual  debugging
    59. 

  59. 	  features using UBIFS module parameters and the corresponding sysfs
    60. 

  60. 	  interfaces.
    61. 

  61.