]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - fs/f2fs/Kconfig
Merge tag 'for-linus-4.12b-rc0c-tag' of git://git.kernel.org/pub/scm/linux/kernel...
[mirror_ubuntu-bionic-kernel.git] / fs / f2fs / Kconfig
CommitLineData
a14d5393 1config F2FS_FS
d7196c5a 2 tristate "F2FS filesystem support"
573ea5fc 3 depends on BLOCK
43b6573b
KM
4 select CRYPTO
5 select CRYPTO_CRC32
a14d5393
JK
6 help
7 F2FS is based on Log-structured File System (LFS), which supports
8 versatile "flash-friendly" features. The design has been focused on
9 addressing the fundamental issues in LFS, which are snowball effect
10 of wandering tree and high cleaning overhead.
11
12 Since flash-based storages show different characteristics according to
13 the internal geometry or flash memory management schemes aka FTL, F2FS
14 and tools support various parameters not only for configuring on-disk
15 layout, but also for selecting allocation and cleaning algorithms.
16
17 If unsure, say N.
18
19config F2FS_STAT_FS
20 bool "F2FS Status Information"
21 depends on F2FS_FS && DEBUG_FS
22 default y
23 help
24 /sys/kernel/debug/f2fs/ contains information about all the partitions
25 mounted as f2fs. Each file shows the whole f2fs information.
26
27 /sys/kernel/debug/f2fs/status includes:
e1c42045 28 - major filesystem information managed by f2fs currently
a14d5393
JK
29 - average SIT information about whole segments
30 - current memory footprint consumed by f2fs.
31
32config F2FS_FS_XATTR
33 bool "F2FS extended attributes"
34 depends on F2FS_FS
35 default y
36 help
37 Extended attributes are name:value pairs associated with inodes by
38 the kernel or by users (see the attr(5) manual page, or visit
39 <http://acl.bestbits.at/> for details).
40
41 If unsure, say N.
42
43config F2FS_FS_POSIX_ACL
44 bool "F2FS Access Control Lists"
45 depends on F2FS_FS_XATTR
46 select FS_POSIX_ACL
47 default y
48 help
49 Posix Access Control Lists (ACLs) support permissions for users and
217940d4 50 groups beyond the owner/group/world scheme.
a14d5393
JK
51
52 To learn more about Access Control Lists, visit the POSIX ACLs for
53 Linux website <http://acl.bestbits.at/>.
54
55 If you don't know what Access Control Lists are, say N
8ae8f162
JK
56
57config 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
65 the extended attribute support in advance.
66
67 If you are not using a security module, say N.
3b218e3a
JK
68
69config F2FS_CHECK_FS
70 bool "F2FS consistency checking feature"
71 depends on F2FS_FS
72 help
e1c42045 73 Enables BUG_ONs which check the filesystem consistency in runtime.
3b218e3a
JK
74
75 If you want to improve the performance, say N.
63f92ddc 76
d33793fb
JK
77config F2FS_FS_ENCRYPTION
78 bool "F2FS Encryption"
79 depends on F2FS_FS
80 depends on F2FS_FS_XATTR
0b81d077 81 select FS_ENCRYPTION
d33793fb
JK
82 help
83 Enable encryption of f2fs files and directories. This
84 feature is similar to ecryptfs, but it is more memory
85 efficient since it avoids caching the encrypted and
86 decrypted pages in the page cache.
87
63f92ddc
JK
88config F2FS_IO_TRACE
89 bool "F2FS IO tracer"
90 depends on F2FS_FS
91 depends on FUNCTION_TRACER
92 help
93 F2FS IO trace is based on a function trace, which gathers process
94 information and block IO patterns in the filesystem level.
95
96 If unsure, say N.
73faec4d
JK
97
98config F2FS_FAULT_INJECTION
99 bool "F2FS fault injection facility"
100 depends on F2FS_FS
101 help
102 Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
103
104 If unsure, say N.