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104 lines
3.2 KiB
104 lines
3.2 KiB
config F2FS_FS |
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tristate "F2FS filesystem support" |
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depends on BLOCK |
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select CRYPTO |
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select CRYPTO_CRC32 |
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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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- major filesystem information managed by f2fs currently |
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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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the kernel or by users (see the attr(5) manual page, or visit |
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<http://acl.bestbits.at/> for details). |
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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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groups beyond the owner/group/world scheme. |
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To learn more about Access Control Lists, visit the POSIX ACLs for |
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Linux website <http://acl.bestbits.at/>. |
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If you don't know what Access Control Lists are, say N |
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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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the extended attribute support in advance. |
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If you are not using a security module, say N. |
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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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Enables BUG_ONs which check the filesystem consistency in runtime. |
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If you want to improve the performance, say N. |
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config F2FS_FS_ENCRYPTION |
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bool "F2FS Encryption" |
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depends on F2FS_FS |
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depends on F2FS_FS_XATTR |
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select FS_ENCRYPTION |
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help |
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Enable encryption of f2fs files and directories. This |
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feature is similar to ecryptfs, but it is more memory |
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efficient since it avoids caching the encrypted and |
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decrypted pages in the page cache. |
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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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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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