2008-07-15 00:08:38 +08:00
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config UBIFS_FS
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tristate "UBIFS file system support"
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select CRC16
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select CRC32
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select CRYPTO if UBIFS_FS_ADVANCED_COMPR
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select CRYPTO if UBIFS_FS_LZO
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select CRYPTO if UBIFS_FS_ZLIB
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select CRYPTO_LZO if UBIFS_FS_LZO
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select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
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depends on MTD_UBI
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help
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UBIFS is a file system for flash devices which works on top of UBI.
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config UBIFS_FS_XATTR
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bool "Extended attributes support"
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depends on UBIFS_FS
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help
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This option enables support of extended attributes.
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config UBIFS_FS_ADVANCED_COMPR
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bool "Advanced compression options"
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depends on UBIFS_FS
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help
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This option allows to explicitly choose which compressions, if any,
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2009-01-26 18:12:25 +08:00
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are enabled in UBIFS. Removing compressors means inability to read
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2008-07-15 00:08:38 +08:00
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existing file systems.
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If unsure, say 'N'.
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config UBIFS_FS_LZO
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bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR
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depends on UBIFS_FS
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default y
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help
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2009-01-26 18:12:25 +08:00
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LZO compressor is generally faster than zlib but compresses worse.
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2008-07-15 00:08:38 +08:00
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Say 'Y' if unsure.
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config UBIFS_FS_ZLIB
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bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR
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depends on UBIFS_FS
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default y
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help
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2008-10-17 01:02:37 +08:00
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Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
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2008-07-15 00:08:38 +08:00
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# Debugging-related stuff
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config UBIFS_FS_DEBUG
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2011-03-09 19:36:23 +08:00
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bool "Enable debugging support"
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2008-07-15 00:08:38 +08:00
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depends on UBIFS_FS
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select DEBUG_FS
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2011-03-30 16:18:54 +08:00
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select KALLSYMS
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2008-07-15 00:08:38 +08:00
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help
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2011-03-09 19:36:23 +08:00
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This option enables UBIFS debugging support. It makes sure various
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assertions, self-checks, debugging messages and test modes are compiled
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in (this all is compiled out otherwise). Assertions are light-weight
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and this option also enables them. Self-checks, debugging messages and
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test modes are switched off by default. Thus, it is safe and actually
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recommended to have debugging support enabled, and it should not slow
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down UBIFS. You can then further enable / disable individual debugging
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features using UBIFS module parameters and the corresponding sysfs
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interfaces.
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