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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 |
a14d5393 JK |
9 | help |
10 | F2FS is based on Log-structured File System (LFS), which supports | |
11 | versatile "flash-friendly" features. The design has been focused on | |
12 | addressing the fundamental issues in LFS, which are snowball effect | |
13 | of wandering tree and high cleaning overhead. | |
14 | ||
15 | Since flash-based storages show different characteristics according to | |
16 | the internal geometry or flash memory management schemes aka FTL, F2FS | |
17 | and tools support various parameters not only for configuring on-disk | |
18 | layout, but also for selecting allocation and cleaning algorithms. | |
19 | ||
20 | If unsure, say N. | |
21 | ||
22 | config F2FS_STAT_FS | |
23 | bool "F2FS Status Information" | |
24 | depends on F2FS_FS && DEBUG_FS | |
25 | default y | |
26 | help | |
27 | /sys/kernel/debug/f2fs/ contains information about all the partitions | |
28 | mounted as f2fs. Each file shows the whole f2fs information. | |
29 | ||
30 | /sys/kernel/debug/f2fs/status includes: | |
e1c42045 | 31 | - major filesystem information managed by f2fs currently |
a14d5393 JK |
32 | - average SIT information about whole segments |
33 | - current memory footprint consumed by f2fs. | |
34 | ||
35 | config F2FS_FS_XATTR | |
36 | bool "F2FS extended attributes" | |
37 | depends on F2FS_FS | |
38 | default y | |
39 | help | |
40 | Extended attributes are name:value pairs associated with inodes by | |
91581e4c | 41 | the kernel or by users (see the attr(5) manual page for details). |
a14d5393 JK |
42 | |
43 | If unsure, say N. | |
44 | ||
45 | config F2FS_FS_POSIX_ACL | |
46 | bool "F2FS Access Control Lists" | |
47 | depends on F2FS_FS_XATTR | |
48 | select FS_POSIX_ACL | |
49 | default y | |
50 | help | |
51 | Posix Access Control Lists (ACLs) support permissions for users and | |
217940d4 | 52 | groups beyond the owner/group/world scheme. |
a14d5393 | 53 | |
a14d5393 | 54 | If you don't know what Access Control Lists are, say N |
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55 | |
56 | config F2FS_FS_SECURITY | |
57 | bool "F2FS Security Labels" | |
58 | depends on F2FS_FS_XATTR | |
59 | help | |
60 | Security labels provide an access control facility to support Linux | |
61 | Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO | |
62 | Linux. This option enables an extended attribute handler for file | |
63 | security labels in the f2fs filesystem, so that it requires enabling | |
bd7253bc L |
64 | the extended attribute support in advance. In particular you need this |
65 | option if you use the setcap command to assign initial process capabi- | |
66 | lities to executables (the security.* extended attributes). | |
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67 | |
68 | If you are not using a security module, say N. | |
3b218e3a JK |
69 | |
70 | config F2FS_CHECK_FS | |
71 | bool "F2FS consistency checking feature" | |
72 | depends on F2FS_FS | |
73 | help | |
e1c42045 | 74 | Enables BUG_ONs which check the filesystem consistency in runtime. |
3b218e3a JK |
75 | |
76 | If you want to improve the performance, say N. | |
63f92ddc JK |
77 | |
78 | config F2FS_IO_TRACE | |
79 | bool "F2FS IO tracer" | |
80 | depends on F2FS_FS | |
81 | depends on FUNCTION_TRACER | |
82 | help | |
83 | F2FS IO trace is based on a function trace, which gathers process | |
84 | information and block IO patterns in the filesystem level. | |
85 | ||
86 | If unsure, say N. | |
73faec4d JK |
87 | |
88 | config F2FS_FAULT_INJECTION | |
89 | bool "F2FS fault injection facility" | |
90 | depends on F2FS_FS | |
91 | help | |
92 | Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on. | |
93 | ||
94 | If unsure, say N. |