1config 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
14config UBIFS_FS_XATTR
15	bool "Extended attributes support"
16	depends on UBIFS_FS
17	help
18	  This option enables support of extended attributes.
19
20config 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 inability to read
26	  existing file systems.
27
28	  If unsure, say 'N'.
29
30config 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 than zlib but compresses worse.
36	   Say 'Y' if unsure.
37
38config 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 compresses better than LZO but it is slower. Say 'Y' if unsure.
44
45# Debugging-related stuff
46config UBIFS_FS_DEBUG
47	bool "Enable debugging support"
48	depends on UBIFS_FS
49	select DEBUG_FS
50	select KALLSYMS
51	help
52	  This option enables UBIFS debugging support. It makes sure various
53	  assertions, self-checks, debugging messages and test modes are compiled
54	  in (this all is compiled out otherwise). Assertions are light-weight
55	  and this option also enables them. Self-checks, debugging messages and
56	  test modes are switched off by default. Thus, it is safe and actually
57	  recommended to have debugging support enabled, and it should not slow
58	  down UBIFS. You can then further enable / disable individual  debugging
59	  features using UBIFS module parameters and the corresponding sysfs
60	  interfaces.
61