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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
a14d5393 | 2 | config F2FS_FS |
d7196c5a | 3 | tristate "F2FS filesystem support" |
573ea5fc | 4 | depends on BLOCK |
aabc172b | 5 | select NLS |
43b6573b KM |
6 | select CRYPTO |
7 | select CRYPTO_CRC32 | |
643fa961 | 8 | select F2FS_FS_XATTR if FS_ENCRYPTION |
ede7a09f | 9 | select FS_ENCRYPTION_ALGS if FS_ENCRYPTION |
a14d5393 JK |
10 | help |
11 | F2FS is based on Log-structured File System (LFS), which supports | |
12 | versatile "flash-friendly" features. The design has been focused on | |
13 | addressing the fundamental issues in LFS, which are snowball effect | |
14 | of wandering tree and high cleaning overhead. | |
15 | ||
16 | Since flash-based storages show different characteristics according to | |
17 | the internal geometry or flash memory management schemes aka FTL, F2FS | |
18 | and tools support various parameters not only for configuring on-disk | |
19 | layout, but also for selecting allocation and cleaning algorithms. | |
20 | ||
21 | If unsure, say N. | |
22 | ||
23 | config F2FS_STAT_FS | |
24 | bool "F2FS Status Information" | |
fc7100ea | 25 | depends on F2FS_FS |
a14d5393 JK |
26 | default y |
27 | help | |
28 | /sys/kernel/debug/f2fs/ contains information about all the partitions | |
29 | mounted as f2fs. Each file shows the whole f2fs information. | |
30 | ||
31 | /sys/kernel/debug/f2fs/status includes: | |
e1c42045 | 32 | - major filesystem information managed by f2fs currently |
a14d5393 JK |
33 | - average SIT information about whole segments |
34 | - current memory footprint consumed by f2fs. | |
35 | ||
36 | config F2FS_FS_XATTR | |
37 | bool "F2FS extended attributes" | |
38 | depends on F2FS_FS | |
39 | default y | |
40 | help | |
41 | Extended attributes are name:value pairs associated with inodes by | |
91581e4c | 42 | the kernel or by users (see the attr(5) manual page for details). |
a14d5393 JK |
43 | |
44 | If unsure, say N. | |
45 | ||
46 | config F2FS_FS_POSIX_ACL | |
47 | bool "F2FS Access Control Lists" | |
48 | depends on F2FS_FS_XATTR | |
49 | select FS_POSIX_ACL | |
50 | default y | |
51 | help | |
52 | Posix Access Control Lists (ACLs) support permissions for users and | |
217940d4 | 53 | groups beyond the owner/group/world scheme. |
a14d5393 | 54 | |
a14d5393 | 55 | If you don't know what Access Control Lists are, say N |
8ae8f162 JK |
56 | |
57 | config F2FS_FS_SECURITY | |
58 | bool "F2FS Security Labels" | |
59 | depends on F2FS_FS_XATTR | |
60 | help | |
61 | Security labels provide an access control facility to support Linux | |
62 | Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO | |
63 | Linux. This option enables an extended attribute handler for file | |
64 | security labels in the f2fs filesystem, so that it requires enabling | |
bd7253bc L |
65 | the extended attribute support in advance. In particular you need this |
66 | option if you use the setcap command to assign initial process capabi- | |
67 | lities to executables (the security.* extended attributes). | |
8ae8f162 JK |
68 | |
69 | If you are not using a security module, say N. | |
3b218e3a JK |
70 | |
71 | config F2FS_CHECK_FS | |
72 | bool "F2FS consistency checking feature" | |
73 | depends on F2FS_FS | |
74 | help | |
e1c42045 | 75 | Enables BUG_ONs which check the filesystem consistency in runtime. |
3b218e3a JK |
76 | |
77 | If you want to improve the performance, say N. | |
63f92ddc JK |
78 | |
79 | config F2FS_IO_TRACE | |
80 | bool "F2FS IO tracer" | |
81 | depends on F2FS_FS | |
82 | depends on FUNCTION_TRACER | |
83 | help | |
84 | F2FS IO trace is based on a function trace, which gathers process | |
85 | information and block IO patterns in the filesystem level. | |
86 | ||
87 | If unsure, say N. | |
73faec4d JK |
88 | |
89 | config F2FS_FAULT_INJECTION | |
90 | bool "F2FS fault injection facility" | |
91 | depends on F2FS_FS | |
92 | help | |
93 | Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on. | |
94 | ||
95 | If unsure, say N. | |
4c8ff709 CY |
96 | |
97 | config F2FS_FS_COMPRESSION | |
98 | bool "F2FS compression feature" | |
99 | depends on F2FS_FS | |
100 | help | |
101 | Enable filesystem-level compression on f2fs regular files, | |
102 | multiple back-end compression algorithms are supported. | |
103 | ||
104 | config F2FS_FS_LZO | |
105 | bool "LZO compression support" | |
106 | depends on F2FS_FS_COMPRESSION | |
107 | select LZO_COMPRESS | |
108 | select LZO_DECOMPRESS | |
109 | default y | |
110 | help | |
111 | Support LZO compress algorithm, if unsure, say Y. | |
112 | ||
113 | config F2FS_FS_LZ4 | |
114 | bool "LZ4 compression support" | |
115 | depends on F2FS_FS_COMPRESSION | |
116 | select LZ4_COMPRESS | |
117 | select LZ4_DECOMPRESS | |
118 | default y | |
119 | help | |
120 | Support LZ4 compress algorithm, if unsure, say Y. | |
50cfa66f CY |
121 | |
122 | config F2FS_FS_ZSTD | |
123 | bool "ZSTD compression support" | |
124 | depends on F2FS_FS_COMPRESSION | |
125 | select ZSTD_COMPRESS | |
126 | select ZSTD_DECOMPRESS | |
127 | default y | |
128 | help | |
129 | Support ZSTD compress algorithm, if unsure, say Y. | |
6d92b201 CY |
130 | |
131 | config F2FS_FS_LZORLE | |
132 | bool "LZO-RLE compression support" | |
133 | depends on F2FS_FS_COMPRESSION | |
134 | depends on F2FS_FS_LZO | |
135 | select LZO_COMPRESS | |
136 | select LZO_DECOMPRESS | |
137 | default y | |
138 | help | |
139 | Support LZO-RLE compress algorithm, if unsure, say Y. |