git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 0d7eff87 AB |
1 | config UBIFS_FS |
| 2 | tristate "UBIFS file system support" | |
| 3 | select CRC16 | |
| 4 | select CRC32 | |
| 5 | select CRYPTO if UBIFS_FS_ADVANCED_COMPR | |
| 6 | select CRYPTO if UBIFS_FS_LZO | |
| 7 | select CRYPTO if UBIFS_FS_ZLIB | |
| 8 | select CRYPTO_LZO if UBIFS_FS_LZO | |
| 9 | select CRYPTO_DEFLATE if UBIFS_FS_ZLIB | |
| 10 | depends on MTD_UBI | |
| 11 | help | |
| 12 | UBIFS is a file system for flash devices which works on top of UBI. | |
| 13 | ||
| 14 | config UBIFS_FS_XATTR | |
| 15 | bool "Extended attributes support" | |
| 16 | depends on UBIFS_FS | |
| 17 | help | |
| 18 | This option enables support of extended attributes. | |
| 19 | ||
| 20 | config UBIFS_FS_ADVANCED_COMPR | |
| 21 | bool "Advanced compression options" | |
| 22 | depends on UBIFS_FS | |
| 23 | help | |
| 24 | This option allows to explicitly choose which compressions, if any, | |
| 692105b8 | 25 | are enabled in UBIFS. Removing compressors means inability to read |
| 0d7eff87 AB |
26 | existing file systems. |
| 27 | ||
| 28 | If unsure, say 'N'. | |
| 29 | ||
| 30 | config UBIFS_FS_LZO | |
| 31 | bool "LZO compression support" if UBIFS_FS_ADVANCED_COMPR | |
| 32 | depends on UBIFS_FS | |
| 33 | default y | |
| 34 | help | |
| 692105b8 | 35 | LZO compressor is generally faster than zlib but compresses worse. |
| 0d7eff87 AB |
36 | Say 'Y' if unsure. |
| 37 | ||
| 38 | config UBIFS_FS_ZLIB | |
| 39 | bool "ZLIB compression support" if UBIFS_FS_ADVANCED_COMPR | |
| 40 | depends on UBIFS_FS | |
| 41 | default y | |
| 42 | help | |
| 025dfdaf | 43 | Zlib compresses better than LZO but it is slower. Say 'Y' if unsure. |
| 0d7eff87 AB |
44 | |
| 45 | # Debugging-related stuff | |
| 46 | config UBIFS_FS_DEBUG | |
| 47 | bool "Enable debugging" | |
| 48 | depends on UBIFS_FS | |
| 49 | select DEBUG_FS | |
| 50 | select KALLSYMS_ALL | |
| 51 | help | |
| 52 | This option enables UBIFS debugging. | |
| 53 | ||
| 54 | config UBIFS_FS_DEBUG_MSG_LVL | |
| 55 | int "Default message level (0 = no extra messages, 3 = lots)" | |
| 56 | depends on UBIFS_FS_DEBUG | |
| 57 | default "0" | |
| 58 | help | |
| 59 | This controls the amount of debugging messages produced by UBIFS. | |
| 60 | If reporting bugs, please try to have available a full dump of the | |
| 61 | messages at level 1 while the misbehaviour was occurring. Level 2 | |
| 62 | may become necessary if level 1 messages were not enough to find the | |
| 63 | bug. Generally Level 3 should be avoided. | |
| 64 | ||
| 65 | config UBIFS_FS_DEBUG_CHKS | |
| 66 | bool "Enable extra checks" | |
| 67 | depends on UBIFS_FS_DEBUG | |
| 68 | help | |
| 69 | If extra checks are enabled UBIFS will check the consistency of its | |
| 70 | internal data structures during operation. However, UBIFS performance | |
| 71 | is dramatically slower when this option is selected especially if the | |
| 72 | file system is large. |