config F2FS_FS tristate "F2FS filesystem support" depends on BLOCK select CRYPTO select CRYPTO_CRC32 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 FTL, 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 F2FS_STAT_FS bool "F2FS Status Information" depends on F2FS_FS && DEBUG_FS 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 F2FS_FS_XATTR bool "F2FS extended attributes" depends on F2FS_FS 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 for details). If unsure, say N. config F2FS_FS_POSIX_ACL bool "F2FS Access Control Lists" depends on F2FS_FS_XATTR select FS_POSIX_ACL 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 . If you don't know what Access Control Lists are, say N config F2FS_FS_SECURITY bool "F2FS Security Labels" depends on F2FS_FS_XATTR 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 F2FS_CHECK_FS bool "F2FS consistency checking feature" depends on F2FS_FS help Enables BUG_ONs which check the filesystem consistency in runtime. If you want to improve the performance, say N. config F2FS_FS_ENCRYPTION bool "F2FS Encryption" depends on F2FS_FS depends on F2FS_FS_XATTR select FS_ENCRYPTION 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 F2FS_IO_TRACE bool "F2FS IO tracer" depends on F2FS_FS depends on FUNCTION_TRACER 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 F2FS_FAULT_INJECTION bool "F2FS fault injection facility" depends on F2FS_FS help Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on. If unsure, say N. d77e324fdf1bc04e110f'>batman-adv/translation-table.c

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