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| author | Jan Kara <jack@suse.cz> | 2015-06-18 16:52:29 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.com> | 2015-07-23 20:59:40 +0200 |
| commit | c290ea01abb7907fde602f3ba55905ef10a37477 (patch) | |
| tree | 67b3f47105259178034ef42d096bb5accd9407a3 /fs/ext4/Kconfig | |
| parent | 82ff50b222d8ac645cdeba974c612c9eef01c3dd (diff) | |
| download | lwn-c290ea01abb7907fde602f3ba55905ef10a37477.tar.gz lwn-c290ea01abb7907fde602f3ba55905ef10a37477.zip | |
fs: Remove ext3 filesystem driver
The functionality of ext3 is fully supported by ext4 driver. Major
distributions (SUSE, RedHat) already use ext4 driver to handle ext3
filesystems for quite some time. There is some ugliness in mm resulting
from jbd cleaning buffers in a dirty page without cleaning page dirty
bit and also support for buffer bouncing in the block layer when stable
pages are required is there only because of jbd. So let's remove the
ext3 driver. This saves us some 28k lines of duplicated code.
Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4/Kconfig')
| -rw-r--r-- | fs/ext4/Kconfig | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig index bf8bc8aba471..219a190ccae9 100644 --- a/fs/ext4/Kconfig +++ b/fs/ext4/Kconfig @@ -1,5 +1,38 @@ +# Ext3 configs are here for backward compatibility with old configs which may +# have EXT3_FS set but not EXT4_FS set and thus would result in non-bootable +# kernels after the removal of ext3 driver. +config EXT3_FS + tristate "The Extended 3 (ext3) filesystem" + # These must match EXT4_FS selects... + select EXT4_FS + select JBD2 + select CRC16 + select CRYPTO + select CRYPTO_CRC32C + help + This config option is here only for backward compatibility. ext3 + filesystem is now handled by the ext4 driver. + +config EXT3_FS_POSIX_ACL + bool "Ext3 POSIX Access Control Lists" + depends on EXT3_FS + select EXT4_FS_POSIX_ACL + select FS_POSIX_ACL + help + This config option is here only for backward compatibility. ext3 + filesystem is now handled by the ext4 driver. + +config EXT3_FS_SECURITY + bool "Ext3 Security Labels" + depends on EXT3_FS + select EXT4_FS_SECURITY + help + This config option is here only for backward compatibility. ext3 + filesystem is now handled by the ext4 driver. + config EXT4_FS tristate "The Extended 4 (ext4) filesystem" + # Please update EXT3_FS selects when changing these select JBD2 select CRC16 select CRYPTO @@ -28,14 +61,14 @@ config EXT4_FS If unsure, say N. -config EXT4_USE_FOR_EXT23 +config EXT4_USE_FOR_EXT2 bool "Use ext4 for ext2/ext3 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. |