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| author | Tao Ma <boyu.mt@taobao.com> | 2012-12-10 22:30:43 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-12-10 22:30:43 +0100 |
| commit | 939da1084458246d2e29dd921c2012c177000e96 (patch) | |
| tree | d1f49c9ff1f99769a75fdc382b0c2e8a047c5475 /Documentation/filesystems/ext4.txt | |
| parent | ext4: remove unused variable from ext4_ext_in_cache() (diff) | |
| download | linux-939da1084458246d2e29dd921c2012c177000e96.tar.xz linux-939da1084458246d2e29dd921c2012c177000e96.zip | |
ext4: Remove CONFIG_EXT4_FS_XATTR
Ted has sent out a RFC about removing this feature. Eric and Jan
confirmed that both RedHat and SUSE enable this feature in all their
product. David also said that "As far as I know, it's enabled in all
Android kernels that use ext4." So it seems OK for us.
And what's more, as inline data depends its implementation on xattr,
and to be frank, I don't run any test again inline data enabled while
xattr disabled. So I think we should add inline data and remove this
config option in the same release.
[ The savings if you disable CONFIG_EXT4_FS_XATTR is only 27k, which
isn't much in the grand scheme of things. Since no one seems to be
testing this configuration except for some automated compile farms, on
balance we are better removing this config option, and so that it is
effectively always enabled. -- tytso ]
Cc: David Brown <davidb@codeaurora.org>
Cc: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'Documentation/filesystems/ext4.txt')
| -rw-r--r-- | Documentation/filesystems/ext4.txt | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 104322bf378c..34ea4f1fa6ea 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -200,12 +200,9 @@ inode_readahead_blks=n This tuning parameter controls the maximum table readahead algorithm will pre-read into the buffer cache. The default value is 32 blocks. -nouser_xattr Disables Extended User Attributes. If you have extended - attribute support enabled in the kernel configuration - (CONFIG_EXT4_FS_XATTR), extended attribute support - is enabled by default on mount. See the attr(5) manual - page and http://acl.bestbits.at/ for more information - about extended attributes. +nouser_xattr Disables Extended User Attributes. See the + attr(5) manual page and http://acl.bestbits.at/ + for more information about extended attributes. noacl This option disables POSIX Access Control List support. If ACL support is enabled in the kernel |