2019-05-19 19:07:45 +07:00
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# SPDX-License-Identifier: GPL-2.0-only
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2012-11-02 15:25:27 +07:00
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config F2FS_FS
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2015-03-04 08:06:55 +07:00
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tristate "F2FS filesystem support"
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2012-11-30 15:32:08 +07:00
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depends on BLOCK
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2019-08-08 09:02:53 +07:00
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select NLS
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2016-03-03 03:04:24 +07:00
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select CRYPTO
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select CRYPTO_CRC32
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2018-12-12 16:50:12 +07:00
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select F2FS_FS_XATTR if FS_ENCRYPTION
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2012-11-02 15:25:27 +07:00
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help
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F2FS is based on Log-structured File System (LFS), which supports
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versatile "flash-friendly" features. The design has been focused on
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addressing the fundamental issues in LFS, which are snowball effect
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of wandering tree and high cleaning overhead.
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Since flash-based storages show different characteristics according to
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the internal geometry or flash memory management schemes aka FTL, F2FS
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and tools support various parameters not only for configuring on-disk
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layout, but also for selecting allocation and cleaning algorithms.
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If unsure, say N.
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config F2FS_STAT_FS
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bool "F2FS Status Information"
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depends on F2FS_FS && DEBUG_FS
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default y
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help
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/sys/kernel/debug/f2fs/ contains information about all the partitions
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mounted as f2fs. Each file shows the whole f2fs information.
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/sys/kernel/debug/f2fs/status includes:
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2014-08-06 21:22:50 +07:00
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- major filesystem information managed by f2fs currently
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2012-11-02 15:25:27 +07:00
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- average SIT information about whole segments
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- current memory footprint consumed by f2fs.
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config F2FS_FS_XATTR
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bool "F2FS extended attributes"
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depends on F2FS_FS
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default y
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help
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Extended attributes are name:value pairs associated with inodes by
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2017-12-20 20:58:52 +07:00
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the kernel or by users (see the attr(5) manual page for details).
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2012-11-02 15:25:27 +07:00
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If unsure, say N.
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config F2FS_FS_POSIX_ACL
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bool "F2FS Access Control Lists"
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depends on F2FS_FS_XATTR
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select FS_POSIX_ACL
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default y
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help
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Posix Access Control Lists (ACLs) support permissions for users and
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2015-08-18 20:42:15 +07:00
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groups beyond the owner/group/world scheme.
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2012-11-02 15:25:27 +07:00
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If you don't know what Access Control Lists are, say N
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2013-06-03 17:46:19 +07:00
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config F2FS_FS_SECURITY
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bool "F2FS Security Labels"
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depends on F2FS_FS_XATTR
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help
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Security labels provide an access control facility to support Linux
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Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
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Linux. This option enables an extended attribute handler for file
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security labels in the f2fs filesystem, so that it requires enabling
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2019-08-25 16:28:38 +07:00
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the extended attribute support in advance. In particular you need this
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option if you use the setcap command to assign initial process capabi-
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lities to executables (the security.* extended attributes).
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2013-06-03 17:46:19 +07:00
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If you are not using a security module, say N.
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2013-10-29 13:43:01 +07:00
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config F2FS_CHECK_FS
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bool "F2FS consistency checking feature"
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depends on F2FS_FS
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help
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2014-08-06 21:22:50 +07:00
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Enables BUG_ONs which check the filesystem consistency in runtime.
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2013-10-29 13:43:01 +07:00
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If you want to improve the performance, say N.
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2014-12-18 10:45:05 +07:00
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config F2FS_IO_TRACE
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bool "F2FS IO tracer"
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depends on F2FS_FS
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depends on FUNCTION_TRACER
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help
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F2FS IO trace is based on a function trace, which gathers process
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information and block IO patterns in the filesystem level.
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If unsure, say N.
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2016-04-30 05:34:32 +07:00
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config F2FS_FAULT_INJECTION
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bool "F2FS fault injection facility"
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depends on F2FS_FS
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help
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Test F2FS to inject faults such as ENOMEM, ENOSPC, and so on.
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If unsure, say N.
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