config [31mCONFIG_F2FS_FS[0m
tristate "F2FS filesystem support"
depends on [31mCONFIG_BLOCK[0m
select [31mCONFIG_CRYPTO[0m
select [31mCONFIG_CRYPTO_CRC32[0m
help
F2FS is based on Log-structured File System (LFS), which supports
versatile "flash-friendly" features. The design has been focused on
addressing the fundamental issues in LFS, which are snowball effect
of wandering tree and high cleaning overhead.
Since flash-based storages show different characteristics according to
the internal geometry or flash memory management schemes aka [31mCONFIG_FTL[0m, F2FS
and tools support various parameters not only for configuring on-disk
layout, but also for selecting allocation and cleaning algorithms.
If unsure, say N.
config [31mCONFIG_F2FS_STAT_FS[0m
bool "F2FS Status Information"
depends on [31mCONFIG_F2FS_FS[0m && [31mCONFIG_DEBUG_FS[0m
default y
help
/sys/kernel/debug/f2fs/ contains information about all the partitions
mounted as f2fs. Each file shows the whole f2fs information.
/sys/kernel/debug/f2fs/status includes:
- major filesystem information managed by f2fs currently
- average SIT information about whole segments
- current memory footprint consumed by f2fs.
config [31mCONFIG_F2FS_FS_XATTR[0m
bool "F2FS extended attributes"
depends on [31mCONFIG_F2FS_FS[0m
default y
help
Extended attributes are name:value pairs associated with inodes by
the kernel or by users (see the attr(5) manual page, or visit
<http://acl.bestbits.at/> for details).
If unsure, say N.
config [31mCONFIG_F2FS_FS_POSIX_ACL[0m
bool "F2FS Access Control Lists"
depends on [31mCONFIG_F2FS_FS_XATTR[0m
select [31mCONFIG_FS_POSIX_ACL[0m
default y
help
Posix Access Control Lists (ACLs) support permissions for users and
groups beyond the owner/group/world scheme.
To learn more about Access Control Lists, visit the POSIX ACLs for
Linux website <http://acl.bestbits.at/>.
If you don't know what Access Control Lists are, say N
config [31mCONFIG_F2FS_FS_SECURITY[0m
bool "F2FS Security Labels"
depends on [31mCONFIG_F2FS_FS_XATTR[0m
help
Security labels provide an access control facility to support Linux
Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
Linux. This option enables an extended attribute handler for file
security labels in the f2fs filesystem, so that it requires enabling
the extended attribute support in advance.
If you are not using a security module, say N.
config [31mCONFIG_F2FS_CHECK_FS[0m
bool "F2FS consistency checking feature"
depends on [31mCONFIG_F2FS_FS[0m
help
Enables BUG_ONs which check the filesystem consistency in runtime.
If you want to improve the performance, say N.
config [31mCONFIG_F2FS_FS_ENCRYPTION[0m
bool "F2FS Encryption"
depends on [31mCONFIG_F2FS_FS[0m
depends on [31mCONFIG_F2FS_FS_XATTR[0m
select [31mCONFIG_FS_ENCRYPTION[0m
help
Enable encryption of f2fs files and directories. This
feature is similar to ecryptfs, but it is more memory
efficient since it avoids caching the encrypted and
decrypted pages in the page cache.
config [31mCONFIG_F2FS_IO_TRACE[0m
bool "F2FS IO tracer"
depends on [31mCONFIG_F2FS_FS[0m
depends on [31mCONFIG_FUNCTION_TRACER[0m
help
F2FS IO trace is based on a function trace, which gathers process
information and block IO patterns in the filesystem level.
If unsure, say N.
config [31mCONFIG_F2FS_FAULT_INJECTION[0m
bool "F2FS fault injection facility"
depends on [31mCONFIG_F2FS_FS[0m
help
Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
If unsure, say N.