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Diffstat (limited to 'fs/ext3/Kconfig')
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1 | config EXT3_FS | ||
2 | tristate "Ext3 journalling file system support" | ||
3 | select JBD | ||
4 | help | ||
5 | This is the journalling version of the Second extended file system | ||
6 | (often called ext3), the de facto standard Linux file system | ||
7 | (method to organize files on a storage device) for hard disks. | ||
8 | |||
9 | The journalling code included in this driver means you do not have | ||
10 | to run e2fsck (file system checker) on your file systems after a | ||
11 | crash. The journal keeps track of any changes that were being made | ||
12 | at the time the system crashed, and can ensure that your file system | ||
13 | is consistent without the need for a lengthy check. | ||
14 | |||
15 | Other than adding the journal to the file system, the on-disk format | ||
16 | of ext3 is identical to ext2. It is possible to freely switch | ||
17 | between using the ext3 driver and the ext2 driver, as long as the | ||
18 | file system has been cleanly unmounted, or e2fsck is run on the file | ||
19 | system. | ||
20 | |||
21 | To add a journal on an existing ext2 file system or change the | ||
22 | behavior of ext3 file systems, you can use the tune2fs utility ("man | ||
23 | tune2fs"). To modify attributes of files and directories on ext3 | ||
24 | file systems, use chattr ("man chattr"). You need to be using | ||
25 | e2fsprogs version 1.20 or later in order to create ext3 journals | ||
26 | (available at <http://sourceforge.net/projects/e2fsprogs/>). | ||
27 | |||
28 | To compile this file system support as a module, choose M here: the | ||
29 | module will be called ext3. | ||
30 | |||
31 | config EXT3_FS_XATTR | ||
32 | bool "Ext3 extended attributes" | ||
33 | depends on EXT3_FS | ||
34 | default y | ||
35 | help | ||
36 | Extended attributes are name:value pairs associated with inodes by | ||
37 | the kernel or by users (see the attr(5) manual page, or visit | ||
38 | <http://acl.bestbits.at/> for details). | ||
39 | |||
40 | If unsure, say N. | ||
41 | |||
42 | You need this for POSIX ACL support on ext3. | ||
43 | |||
44 | config EXT3_FS_POSIX_ACL | ||
45 | bool "Ext3 POSIX Access Control Lists" | ||
46 | depends on EXT3_FS_XATTR | ||
47 | select FS_POSIX_ACL | ||
48 | help | ||
49 | Posix Access Control Lists (ACLs) support permissions for users and | ||
50 | groups beyond the owner/group/world scheme. | ||
51 | |||
52 | To learn more about Access Control Lists, visit the Posix ACLs for | ||
53 | Linux website <http://acl.bestbits.at/>. | ||
54 | |||
55 | If you don't know what Access Control Lists are, say N | ||
56 | |||
57 | config EXT3_FS_SECURITY | ||
58 | bool "Ext3 Security Labels" | ||
59 | depends on EXT3_FS_XATTR | ||
60 | help | ||
61 | Security labels support alternative access control models | ||
62 | implemented by security modules like SELinux. This option | ||
63 | enables an extended attribute handler for file security | ||
64 | labels in the ext3 filesystem. | ||
65 | |||
66 | If you are not using a security module that requires using | ||
67 | extended attributes for file security labels, say N. | ||