Commit | Line | Data |
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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, | |
25 | are enabled in UBIFS. Removing compressors means inbility to read | |
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 | |
35 | LZO compressor is generally faster then zlib but compresses worse. | |
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 | |
43 | Zlib copresses better then LZO but it is slower. Say 'Y' if unsure. | |
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. |