diff options
Diffstat (limited to 'fs/ext4/Kconfig')
| -rw-r--r-- | fs/ext4/Kconfig | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index 7505482a08f..efea5d5c44c 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -2,6 +2,8 @@ config EXT4_FS tristate "The Extended 4 (ext4) filesystem" select JBD2 select CRC16 + select CRYPTO + select CRYPTO_CRC32C help This is the next generation of the ext3 filesystem. @@ -18,7 +20,7 @@ config EXT4_FS 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 formating a new filesystem as an ext4 + filesystem, or formatting a new filesystem as an ext4 filesystem initially. To compile this file system support as a module, choose M here. The @@ -26,36 +28,20 @@ config EXT4_FS If unsure, say N. -config EXT4DEV_COMPAT - bool "Enable ext4dev compatibility" - depends on EXT4_FS - help - Starting with 2.6.28, the name of the ext4 filesystem was - renamed from ext4dev to ext4. Unfortunately there are some - legacy userspace programs (such as klibc's fstype) have - "ext4dev" hardcoded. - - To enable backwards compatibility so that systems that are - still expecting to mount ext4 filesystems using ext4dev, - chose Y here. This feature will go away by 2.6.31, so - please arrange to get your userspace programs fixed! - -config EXT4_FS_XATTR - bool "Ext4 extended attributes" +config EXT4_USE_FOR_EXT23 + bool "Use ext4 for ext2/ext3 file systems" depends on EXT4_FS + depends on EXT3_FS=n || EXT2_FS=n default y help - Extended attributes are name:value pairs associated with inodes by - the kernel or by users (see the attr(5) manual page, or visit - <http://acl.bestbits.at/> for details). - - If unsure, say N. - - You need this for POSIX ACL support on ext4. + Allow the ext4 file system driver code to be used for ext2 or + ext3 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. config EXT4_FS_POSIX_ACL bool "Ext4 POSIX Access Control Lists" - depends on EXT4_FS_XATTR + depends on EXT4_FS select FS_POSIX_ACL help POSIX Access Control Lists (ACLs) support permissions for users and @@ -68,7 +54,7 @@ config EXT4_FS_POSIX_ACL config EXT4_FS_SECURITY bool "Ext4 Security Labels" - depends on EXT4_FS_XATTR + depends on EXT4_FS help Security labels support alternative access control models implemented by security modules like SELinux. This option @@ -77,3 +63,13 @@ config EXT4_FS_SECURITY If you are not using a security module that requires using extended attributes for file security labels, say N. + +config EXT4_DEBUG + 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 |