fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out
Use fs/*/Kconfig more, which is good because everything related to one
filesystem is in one place and fs/Kconfig is quite fat.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
new file mode 100644
index 0000000..7505482
--- /dev/null
+++ b/fs/ext4/Kconfig
@@ -0,0 +1,79 @@
+config EXT4_FS
+ tristate "The Extended 4 (ext4) filesystem"
+ select JBD2
+ select CRC16
+ help
+ This is the next generation of the ext3 filesystem.
+
+ Unlike the change from ext2 filesystem to ext3 filesystem,
+ the on-disk format of ext4 is not forwards compatible with
+ ext3; it is based on extent maps and it supports 48-bit
+ physical block numbers. The ext4 filesystem also supports delayed
+ allocation, persistent preallocation, high resolution time stamps,
+ and a number of other features to improve performance and speed
+ 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 formating a new filesystem as an ext4
+ filesystem initially.
+
+ To compile this file system support as a module, choose M here. The
+ module will be called ext4.
+
+ 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"
+ depends on EXT4_FS
+ 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.
+
+config EXT4_FS_POSIX_ACL
+ bool "Ext4 POSIX Access Control Lists"
+ depends on EXT4_FS_XATTR
+ select FS_POSIX_ACL
+ help
+ 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
+ bool "Ext4 Security Labels"
+ depends on EXT4_FS_XATTR
+ help
+ Security labels support alternative access control models
+ implemented by security modules like SELinux. This option
+ enables an extended attribute handler for file security
+ labels in the ext4 filesystem.
+
+ If you are not using a security module that requires using
+ extended attributes for file security labels, say N.