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+# SPDX-License-Identifier: GPL-2.0-only
+config F2FS_FS
+ tristate "F2FS filesystem support"
+ depends on BLOCK
+ select NLS
+ select CRYPTO
+ select CRYPTO_CRC32
+ select F2FS_FS_XATTR if FS_ENCRYPTION
+ select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
+ select FS_IOMAP
+ select LZ4_COMPRESS if F2FS_FS_LZ4
+ select LZ4_DECOMPRESS if F2FS_FS_LZ4
+ select LZ4HC_COMPRESS if F2FS_FS_LZ4HC
+ select LZO_COMPRESS if F2FS_FS_LZO
+ select LZO_DECOMPRESS if F2FS_FS_LZO
+ select ZSTD_COMPRESS if F2FS_FS_ZSTD
+ select ZSTD_DECOMPRESS if F2FS_FS_ZSTD
+ 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
+ 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 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.
+
+ 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. In particular you need this
+ option if you use the setcap command to assign initial process capabi-
+ lities to executables (the security.* extended attributes).
+
+ 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_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.
+
+config F2FS_FS_COMPRESSION
+ bool "F2FS compression feature"
+ depends on F2FS_FS
+ help
+ Enable filesystem-level compression on f2fs regular files,
+ multiple back-end compression algorithms are supported.
+
+config F2FS_FS_LZO
+ bool "LZO compression support"
+ depends on F2FS_FS_COMPRESSION
+ default y
+ help
+ Support LZO compress algorithm, if unsure, say Y.
+
+config F2FS_FS_LZORLE
+ bool "LZO-RLE compression support"
+ depends on F2FS_FS_LZO
+ default y
+ help
+ Support LZO-RLE compress algorithm, if unsure, say Y.
+
+config F2FS_FS_LZ4
+ bool "LZ4 compression support"
+ depends on F2FS_FS_COMPRESSION
+ default y
+ help
+ Support LZ4 compress algorithm, if unsure, say Y.
+
+config F2FS_FS_LZ4HC
+ bool "LZ4HC compression support"
+ depends on F2FS_FS_LZ4
+ default y
+ help
+ Support LZ4HC compress algorithm, LZ4HC has compatible on-disk
+ layout with LZ4, if unsure, say Y.
+
+config F2FS_FS_ZSTD
+ bool "ZSTD compression support"
+ depends on F2FS_FS_COMPRESSION
+ default y
+ help
+ Support ZSTD compress algorithm, if unsure, say Y.
+
+config F2FS_IOSTAT
+ bool "F2FS IO statistics information"
+ depends on F2FS_FS
+ default y
+ help
+ Support getting IO statistics through sysfs and printing out periodic
+ IO statistics tracepoint events. You have to turn on "iostat_enable"
+ sysfs node to enable this feature.
+
+config F2FS_UNFAIR_RWSEM
+ bool "F2FS unfair rw_semaphore"
+ depends on F2FS_FS && BLK_CGROUP
+ help
+ Use unfair rw_semaphore, if system configured IO priority by block
+ cgroup.