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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 |
43b6573b KM |
5 | select CRYPTO |
6 | select CRYPTO_CRC32 | |
643fa961 | 7 | select F2FS_FS_XATTR if FS_ENCRYPTION |
a14d5393 JK |
8 | help |
9 | F2FS is based on Log-structured File System (LFS), which supports | |
10 | versatile "flash-friendly" features. The design has been focused on | |
11 | addressing the fundamental issues in LFS, which are snowball effect | |
12 | of wandering tree and high cleaning overhead. | |
13 | ||
14 | Since flash-based storages show different characteristics according to | |
15 | the internal geometry or flash memory management schemes aka FTL, F2FS | |
16 | and tools support various parameters not only for configuring on-disk | |
17 | layout, but also for selecting allocation and cleaning algorithms. | |
18 | ||
19 | If unsure, say N. | |
20 | ||
21 | config F2FS_STAT_FS | |
22 | bool "F2FS Status Information" | |
23 | depends on F2FS_FS && DEBUG_FS | |
24 | default y | |
25 | help | |
26 | /sys/kernel/debug/f2fs/ contains information about all the partitions | |
27 | mounted as f2fs. Each file shows the whole f2fs information. | |
28 | ||
29 | /sys/kernel/debug/f2fs/status includes: | |
e1c42045 | 30 | - major filesystem information managed by f2fs currently |
a14d5393 JK |
31 | - average SIT information about whole segments |
32 | - current memory footprint consumed by f2fs. | |
33 | ||
34 | config F2FS_FS_XATTR | |
35 | bool "F2FS extended attributes" | |
36 | depends on F2FS_FS | |
37 | default y | |
38 | help | |
39 | Extended attributes are name:value pairs associated with inodes by | |
91581e4c | 40 | the kernel or by users (see the attr(5) manual page for details). |
a14d5393 JK |
41 | |
42 | If unsure, say N. | |
43 | ||
44 | config F2FS_FS_POSIX_ACL | |
45 | bool "F2FS Access Control Lists" | |
46 | depends on F2FS_FS_XATTR | |
47 | select FS_POSIX_ACL | |
48 | default y | |
49 | help | |
50 | Posix Access Control Lists (ACLs) support permissions for users and | |
217940d4 | 51 | groups beyond the owner/group/world scheme. |
a14d5393 | 52 | |
a14d5393 | 53 | If you don't know what Access Control Lists are, say N |
8ae8f162 JK |
54 | |
55 | config F2FS_FS_SECURITY | |
56 | bool "F2FS Security Labels" | |
57 | depends on F2FS_FS_XATTR | |
58 | help | |
59 | Security labels provide an access control facility to support Linux | |
60 | Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO | |
61 | Linux. This option enables an extended attribute handler for file | |
62 | security labels in the f2fs filesystem, so that it requires enabling | |
63 | the extended attribute support in advance. | |
64 | ||
65 | If you are not using a security module, say N. | |
3b218e3a JK |
66 | |
67 | config F2FS_CHECK_FS | |
68 | bool "F2FS consistency checking feature" | |
69 | depends on F2FS_FS | |
70 | help | |
e1c42045 | 71 | Enables BUG_ONs which check the filesystem consistency in runtime. |
3b218e3a JK |
72 | |
73 | If you want to improve the performance, say N. | |
63f92ddc JK |
74 | |
75 | config F2FS_IO_TRACE | |
76 | bool "F2FS IO tracer" | |
77 | depends on F2FS_FS | |
78 | depends on FUNCTION_TRACER | |
79 | help | |
80 | F2FS IO trace is based on a function trace, which gathers process | |
81 | information and block IO patterns in the filesystem level. | |
82 | ||
83 | If unsure, say N. | |
73faec4d JK |
84 | |
85 | config F2FS_FAULT_INJECTION | |
86 | bool "F2FS fault injection facility" | |
87 | depends on F2FS_FS | |
88 | help | |
89 | Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on. | |
90 | ||
91 | If unsure, say N. |