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ubifs
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Kconfig

Kconfig 2.1 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. 	select LIST_SORT
    11. 

  11. 	depends on MTD_UBI
    12. 

  12. 	help
    13. 

  13. 	  UBIFS is a file system for flash devices which works on top of UBI.
    14. 

  14. 

  15. config UBIFS_FS_XATTR
    16. 

  16. 	bool "Extended attributes support"
    17. 

  17. 	depends on UBIFS_FS
    18. 

  18. 	help
    19. 

  19. 	  This option enables support of extended attributes.
    20. 

  20. 

  21. config UBIFS_FS_ADVANCED_COMPR
    22. 

  22. 	bool "Advanced compression options"
    23. 

  23. 	depends on UBIFS_FS
    24. 

  24. 	help
    25. 

  25. 	  This option allows to explicitly choose which compressions, if any,
    26. 

  26. 	  are enabled in UBIFS. Removing compressors means inability to read
    27. 

  27. 	  existing file systems.
    28. 

  28. 

  29. 	  If unsure, say 'N'.
    30. 

  30. 

  31. config UBIFS_FS_LZO
    32. 

  32. 	bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR
    33. 

  33. 	depends on UBIFS_FS
    34. 

  34. 	default y
    35. 

  35. 	help
    36. 

  36. 	   LZO compressor is generally faster than zlib but compresses worse.
    37. 

  37. 	   Say 'Y' if unsure.
    38. 

  38. 

  39. config UBIFS_FS_ZLIB
    40. 

  40. 	bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR
    41. 

  41. 	depends on UBIFS_FS
    42. 

  42. 	default y
    43. 

  43. 	help
    44. 

  44. 	  Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
    45. 

  45. 

  46. # Debugging-related stuff
    47. 

  47. config UBIFS_FS_DEBUG
    48. 

  48. 	bool "Enable debugging"
    49. 

  49. 	depends on UBIFS_FS
    50. 

  50. 	select DEBUG_FS
    51. 

  51. 	select KALLSYMS_ALL
    52. 

  52. 	help
    53. 

  53. 	  This option enables UBIFS debugging.
    54. 

  54. 

  55. config UBIFS_FS_DEBUG_MSG_LVL
    56. 

  56. 	int "Default message level (0 = no extra messages, 3 = lots)"
    57. 

  57. 	depends on UBIFS_FS_DEBUG
    58. 

  58. 	default "0"
    59. 

  59. 	help
    60. 

  60. 	  This controls the amount of debugging messages produced by UBIFS.
    61. 

  61. 	  If reporting bugs, please try to have available a full dump of the
    62. 

  62. 	  messages at level 1 while the misbehaviour was occurring. Level 2
    63. 

  63. 	  may become necessary if level 1 messages were not enough to find the
    64. 

  64. 	  bug. Generally Level 3 should be avoided.
    65. 

  65. 

  66. config UBIFS_FS_DEBUG_CHKS
    67. 

  67. 	bool "Enable extra checks"
    68. 

  68. 	depends on UBIFS_FS_DEBUG
    69. 

  69. 	help
    70. 

  70. 	  If extra checks are enabled UBIFS will check the consistency of its
    71. 

  71. 	  internal data structures during operation. However, UBIFS performance
    72. 

  72. 	  is dramatically slower when this option is selected especially if the
    73. 

  73. 	  file system is large.
    74.