| config UBIFS_FS |
| tristate "UBIFS file system support" |
| select CRC16 |
| select CRC32 |
| select CRYPTO if UBIFS_FS_ADVANCED_COMPR |
| select CRYPTO if UBIFS_FS_LZO |
| select CRYPTO if UBIFS_FS_ZLIB |
| select CRYPTO_LZO if UBIFS_FS_LZO |
| select CRYPTO_DEFLATE if UBIFS_FS_ZLIB |
| depends on MTD_UBI |
| help |
| UBIFS is a file system for flash devices which works on top of UBI. |
| |
| config UBIFS_FS_XATTR |
| bool "Extended attributes support" |
| depends on UBIFS_FS |
| help |
| This option enables support of extended attributes. |
| |
| config UBIFS_FS_ADVANCED_COMPR |
| bool "Advanced compression options" |
| depends on UBIFS_FS |
| help |
| This option allows to explicitly choose which compressions, if any, |
| are enabled in UBIFS. Removing compressors means inability to read |
| existing file systems. |
| |
| If unsure, say 'N'. |
| |
| config UBIFS_FS_LZO |
| bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR |
| depends on UBIFS_FS |
| default y |
| help |
| LZO compressor is generally faster than zlib but compresses worse. |
| Say 'Y' if unsure. |
| |
| config UBIFS_FS_ZLIB |
| bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR |
| depends on UBIFS_FS |
| default y |
| help |
| Zlib compresses better than LZO but it is slower. Say 'Y' if unsure. |
| |
| # Debugging-related stuff |
| config UBIFS_FS_DEBUG |
| bool "Enable debugging" |
| depends on UBIFS_FS |
| select DEBUG_FS |
| select KALLSYMS_ALL |
| help |
| This option enables UBIFS debugging. |
| |
| config UBIFS_FS_DEBUG_MSG_LVL |
| int "Default message level (0 = no extra messages, 3 = lots)" |
| depends on UBIFS_FS_DEBUG |
| default "0" |
| help |
| This controls the amount of debugging messages produced by UBIFS. |
| If reporting bugs, please try to have available a full dump of the |
| messages at level 1 while the misbehaviour was occurring. Level 2 |
| may become necessary if level 1 messages were not enough to find the |
| bug. Generally Level 3 should be avoided. |
| |
| config UBIFS_FS_DEBUG_CHKS |
| bool "Enable extra checks" |
| depends on UBIFS_FS_DEBUG |
| help |
| If extra checks are enabled UBIFS will check the consistency of its |
| internal data structures during operation. However, UBIFS performance |
| is dramatically slower when this option is selected especially if the |
| file system is large. |