1config F2FS_FS 2 tristate "F2FS filesystem support" 3 depends on BLOCK 4 help 5 F2FS is based on Log-structured File System (LFS), which supports 6 versatile "flash-friendly" features. The design has been focused on 7 addressing the fundamental issues in LFS, which are snowball effect 8 of wandering tree and high cleaning overhead. 9 10 Since flash-based storages show different characteristics according to 11 the internal geometry or flash memory management schemes aka FTL, F2FS 12 and tools support various parameters not only for configuring on-disk 13 layout, but also for selecting allocation and cleaning algorithms. 14 15 If unsure, say N. 16 17config F2FS_STAT_FS 18 bool "F2FS Status Information" 19 depends on F2FS_FS && DEBUG_FS 20 default y 21 help 22 /sys/kernel/debug/f2fs/ contains information about all the partitions 23 mounted as f2fs. Each file shows the whole f2fs information. 24 25 /sys/kernel/debug/f2fs/status includes: 26 - major filesystem information managed by f2fs currently 27 - average SIT information about whole segments 28 - current memory footprint consumed by f2fs. 29 30config F2FS_FS_XATTR 31 bool "F2FS extended attributes" 32 depends on F2FS_FS 33 default y 34 help 35 Extended attributes are name:value pairs associated with inodes by 36 the kernel or by users (see the attr(5) manual page, or visit 37 <http://acl.bestbits.at/> for details). 38 39 If unsure, say N. 40 41config F2FS_FS_POSIX_ACL 42 bool "F2FS Access Control Lists" 43 depends on F2FS_FS_XATTR 44 select FS_POSIX_ACL 45 default y 46 help 47 Posix Access Control Lists (ACLs) support permissions for users and 48 gourps beyond the owner/group/world scheme. 49 50 To learn more about Access Control Lists, visit the POSIX ACLs for 51 Linux website <http://acl.bestbits.at/>. 52 53 If you don't know what Access Control Lists are, say N 54 55config 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. 66 67config F2FS_CHECK_FS 68 bool "F2FS consistency checking feature" 69 depends on F2FS_FS 70 help 71 Enables BUG_ONs which check the filesystem consistency in runtime. 72 73 If you want to improve the performance, say N. 74 75config 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. 84