Blame - fs/f2fs/Kconfig - SHIFTPHONES/mainline/linux

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Thomas Gleixner	ec8f24b	2019-05-19 13:07:45 +0100	[diff] [blame]	1	# SPDX-License-Identifier: GPL-2.0-only
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	2	config F2FS_FS
Jaegeuk Kim	d7196c5	2015-03-03 17:06:55 -0800	[diff] [blame]	3	tristate "F2FS filesystem support"
Jaegeuk Kim	573ea5f	2012-11-30 17:32:08 +0900	[diff] [blame]	4	depends on BLOCK
YueHaibing	aabc172	2019-08-08 10:02:53 +0800	[diff] [blame]	5	select NLS
Keith Mok	43b6573	2016-03-02 12:04:24 -0800	[diff] [blame]	6	select CRYPTO
				7	select CRYPTO_CRC32
Chandan Rajendra	643fa96	2018-12-12 15:20:12 +0530	[diff] [blame]	8	select F2FS_FS_XATTR if FS_ENCRYPTION
Herbert Xu	ede7a09	2019-12-27 10:47:00 +0800	[diff] [blame]	9	select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
Geert Uytterhoeven	72f8588	2021-02-26 16:51:42 +0100	[diff] [blame]	10	select LZ4_COMPRESS if F2FS_FS_LZ4
				11	select LZ4_DECOMPRESS if F2FS_FS_LZ4
				12	select LZ4HC_COMPRESS if F2FS_FS_LZ4HC
				13	select LZO_COMPRESS if F2FS_FS_LZO
				14	select LZO_DECOMPRESS if F2FS_FS_LZO
				15	select ZSTD_COMPRESS if F2FS_FS_ZSTD
				16	select ZSTD_DECOMPRESS if F2FS_FS_ZSTD
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	17	help
				18	F2FS is based on Log-structured File System (LFS), which supports
				19	versatile "flash-friendly" features. The design has been focused on
				20	addressing the fundamental issues in LFS, which are snowball effect
				21	of wandering tree and high cleaning overhead.
				22
				23	Since flash-based storages show different characteristics according to
				24	the internal geometry or flash memory management schemes aka FTL, F2FS
				25	and tools support various parameters not only for configuring on-disk
				26	layout, but also for selecting allocation and cleaning algorithms.
				27
				28	If unsure, say N.
				29
				30	config F2FS_STAT_FS
				31	bool "F2FS Status Information"
Hridya Valsaraju	fc7100e	2020-01-22 10:51:16 -0800	[diff] [blame]	32	depends on F2FS_FS
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	33	default y
				34	help
				35	/sys/kernel/debug/f2fs/ contains information about all the partitions
				36	mounted as f2fs. Each file shows the whole f2fs information.
				37
				38	/sys/kernel/debug/f2fs/status includes:
arter97	e1c4204	2014-08-06 23:22:50 +0900	[diff] [blame]	39	- major filesystem information managed by f2fs currently
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	40	- average SIT information about whole segments
				41	- current memory footprint consumed by f2fs.
				42
				43	config F2FS_FS_XATTR
				44	bool "F2FS extended attributes"
				45	depends on F2FS_FS
				46	default y
				47	help
				48	Extended attributes are name:value pairs associated with inodes by
Adam Borowski	91581e4	2017-12-20 14:58:52 +0100	[diff] [blame]	49	the kernel or by users (see the attr(5) manual page for details).
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	50
				51	If unsure, say N.
				52
				53	config F2FS_FS_POSIX_ACL
				54	bool "F2FS Access Control Lists"
				55	depends on F2FS_FS_XATTR
				56	select FS_POSIX_ACL
				57	default y
				58	help
				59	Posix Access Control Lists (ACLs) support permissions for users and
Junesung Lee	217940d	2015-08-18 22:42:15 +0900	[diff] [blame]	60	groups beyond the owner/group/world scheme.
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	61
Jaegeuk Kim	a14d5393	2012-11-02 17:25:27 +0900	[diff] [blame]	62	If you don't know what Access Control Lists are, say N
Jaegeuk Kim	8ae8f16	2013-06-03 19:46:19 +0900	[diff] [blame]	63
				64	config F2FS_FS_SECURITY
				65	bool "F2FS Security Labels"
				66	depends on F2FS_FS_XATTR
				67	help
				68	Security labels provide an access control facility to support Linux
				69	Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
				70	Linux. This option enables an extended attribute handler for file
				71	security labels in the f2fs filesystem, so that it requires enabling
Lockywolf	bd7253b	2019-08-25 17:28:38 +0800	[diff] [blame]	72	the extended attribute support in advance. In particular you need this
				73	option if you use the setcap command to assign initial process capabi-
				74	lities to executables (the security.* extended attributes).
Jaegeuk Kim	8ae8f16	2013-06-03 19:46:19 +0900	[diff] [blame]	75
				76	If you are not using a security module, say N.
Jaegeuk Kim	3b218e3	2013-10-29 15:43:01 +0900	[diff] [blame]	77
				78	config F2FS_CHECK_FS
				79	bool "F2FS consistency checking feature"
				80	depends on F2FS_FS
				81	help
arter97	e1c4204	2014-08-06 23:22:50 +0900	[diff] [blame]	82	Enables BUG_ONs which check the filesystem consistency in runtime.
Jaegeuk Kim	3b218e3	2013-10-29 15:43:01 +0900	[diff] [blame]	83
				84	If you want to improve the performance, say N.
Jaegeuk Kim	63f92dd	2014-12-17 19:45:05 -0800	[diff] [blame]	85
Jaegeuk Kim	73faec4d	2016-04-29 15:34:32 -0700	[diff] [blame]	86	config F2FS_FAULT_INJECTION
				87	bool "F2FS fault injection facility"
				88	depends on F2FS_FS
				89	help
				90	Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
				91
				92	If unsure, say N.
Chao Yu	4c8ff70	2019-11-01 18:07:14 +0800	[diff] [blame]	93
				94	config F2FS_FS_COMPRESSION
				95	bool "F2FS compression feature"
				96	depends on F2FS_FS
				97	help
				98	Enable filesystem-level compression on f2fs regular files,
				99	multiple back-end compression algorithms are supported.
				100
				101	config F2FS_FS_LZO
				102	bool "LZO compression support"
				103	depends on F2FS_FS_COMPRESSION
Chao Yu	4c8ff70	2019-11-01 18:07:14 +0800	[diff] [blame]	104	default y
				105	help
				106	Support LZO compress algorithm, if unsure, say Y.
				107
Tiezhu Yang	6b3ba1e	2021-08-05 21:30:24 +0800	[diff] [blame]	108	config F2FS_FS_LZORLE
				109	bool "LZO-RLE compression support"
				110	depends on F2FS_FS_LZO
				111	default y
				112	help
				113	Support LZO-RLE compress algorithm, if unsure, say Y.
				114
Chao Yu	4c8ff70	2019-11-01 18:07:14 +0800	[diff] [blame]	115	config F2FS_FS_LZ4
				116	bool "LZ4 compression support"
				117	depends on F2FS_FS_COMPRESSION
Chao Yu	4c8ff70	2019-11-01 18:07:14 +0800	[diff] [blame]	118	default y
				119	help
				120	Support LZ4 compress algorithm, if unsure, say Y.
Chao Yu	50cfa66	2020-03-03 17:46:02 +0800	[diff] [blame]	121
Chao Yu	3fde13f	2021-01-22 17:46:43 +0800	[diff] [blame]	122	config F2FS_FS_LZ4HC
				123	bool "LZ4HC compression support"
Chao Yu	3fde13f	2021-01-22 17:46:43 +0800	[diff] [blame]	124	depends on F2FS_FS_LZ4
Chao Yu	3fde13f	2021-01-22 17:46:43 +0800	[diff] [blame]	125	default y
				126	help
				127	Support LZ4HC compress algorithm, LZ4HC has compatible on-disk
				128	layout with LZ4, if unsure, say Y.
				129
Chao Yu	50cfa66	2020-03-03 17:46:02 +0800	[diff] [blame]	130	config F2FS_FS_ZSTD
				131	bool "ZSTD compression support"
				132	depends on F2FS_FS_COMPRESSION
Chao Yu	50cfa66	2020-03-03 17:46:02 +0800	[diff] [blame]	133	default y
				134	help
				135	Support ZSTD compress algorithm, if unsure, say Y.
Daeho Jeong	5211874	2021-08-19 20:52:28 -0700	[diff] [blame]	136
				137	config F2FS_IOSTAT
				138	bool "F2FS IO statistics information"
				139	depends on F2FS_FS
				140	default y
				141	help
				142	Support getting IO statistics through sysfs and printing out periodic
				143	IO statistics tracepoint events. You have to turn on "iostat_enable"
				144	sysfs node to enable this feature.