diff options
Diffstat (limited to 'fs/ext4/Kconfig')
| -rw-r--r-- | fs/ext4/Kconfig | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index efea5d5c44ce..01873c2a34ad 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -1,9 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0-only config EXT4_FS tristate "The Extended 4 (ext4) filesystem" + select BUFFER_HEAD select JBD2 select CRC16 - select CRYPTO - select CRYPTO_CRC32C + select CRC32 + select FS_IOMAP + select FS_ENCRYPTION_ALGS if FS_ENCRYPTION help This is the next generation of the ext3 filesystem. @@ -16,26 +19,27 @@ config EXT4_FS up fsck time. For more information, please see the web pages at http://ext4.wiki.kernel.org. - The ext4 filesystem will support mounting an ext3 - filesystem; while there will be some performance gains from - the delayed allocation and inode table readahead, the best - performance gains will require enabling ext4 features in the - filesystem, or formatting a new filesystem as an ext4 - filesystem initially. + The ext4 filesystem supports mounting an ext3 filesystem; while there + are some performance gains from the delayed allocation and inode + table readahead, the best performance gains require enabling ext4 + features in the filesystem using tune2fs, or formatting a new + filesystem as an ext4 filesystem initially. Without explicit enabling + of ext4 features, the on disk filesystem format stays fully backward + compatible. To compile this file system support as a module, choose M here. The module will be called ext4. If unsure, say N. -config EXT4_USE_FOR_EXT23 - bool "Use ext4 for ext2/ext3 file systems" +config EXT4_USE_FOR_EXT2 + bool "Use ext4 for ext2 file systems" depends on EXT4_FS - depends on EXT3_FS=n || EXT2_FS=n + depends on EXT2_FS=n default y help - Allow the ext4 file system driver code to be used for ext2 or - ext3 file system mounts. This allows users to reduce their + Allow the ext4 file system driver code to be used for ext2 + file system mounts. This allows users to reduce their compiled kernel size by using one file system driver for ext2, ext3, and ext4 file systems. @@ -47,9 +51,6 @@ config EXT4_FS_POSIX_ACL 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 <http://acl.bestbits.at/>. - If you don't know what Access Control Lists are, say N config EXT4_FS_SECURITY @@ -65,11 +66,27 @@ config EXT4_FS_SECURITY extended attributes for file security labels, say N. config EXT4_DEBUG - bool "EXT4 debugging support" + bool "Ext4 debugging support" depends on EXT4_FS help Enables run-time debugging support for the ext4 filesystem. If you select Y here, then you will be able to turn on debugging - with a command such as: - echo 1 > /sys/module/ext4/parameters/mballoc_debug + using dynamic debug control for mb_debug() / ext_debug() msgs. + +config EXT4_KUNIT_TESTS + tristate "KUnit tests for ext4" if !KUNIT_ALL_TESTS + depends on EXT4_FS && KUNIT + default KUNIT_ALL_TESTS + help + This builds the ext4 KUnit tests. + + KUnit tests run during boot and output the results to the debug log + in TAP format (https://testanything.org/). Only useful for kernel devs + running KUnit test harness and are not for inclusion into a production + build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. |