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| author |   Lukas Czerner <lczerner@redhat.com> | 2011-02-21 20:16:21 -0500 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2011-02-21 20:16:21 -0500 |
| commit | 6f9524e9e118929f1de02840dffe858f99685aea (patch) | |
| tree | 6d0b62df535a97299317af1038e4afacc3ed4e3c /Documentation/ABI | |
| parent | vfs: fix BUG_ON() in fs/namei.c:1461 (diff) | |
| download | linux-dev-6f9524e9e118929f1de02840dffe858f99685aea.tar.xz linux-dev-6f9524e9e118929f1de02840dffe858f99685aea.zip | |
ext4: update ext4 documentation
Add documentation for mount options and ioctls to
Documentation/filesystem/ext4.txt, which has not been udpated for some
time. Also add for ext4 sysfs tunables to the
Documentation/ABI/testing/sysfs-fs-ext4 file, and fix a few
typographical errors in that file.
https://bugzilla.kernel.org/show_bug.cgi?id=9423
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-ext4 | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4 index 5fb709997d96..f22ac0872ae8 100644 --- a/Documentation/ABI/testing/sysfs-fs-ext4 +++ b/Documentation/ABI/testing/sysfs-fs-ext4 @@ -48,7 +48,7 @@ Description: will have its blocks allocated out of its own unique preallocation pool. -What: /sys/fs/ext4/<disk>/inode_readahead +What: /sys/fs/ext4/<disk>/inode_readahead_blks Date: March 2008 Contact: "Theodore Ts'o" <tytso@mit.edu> Description: @@ -85,7 +85,14 @@ Date: June 2008 Contact: "Theodore Ts'o" <tytso@mit.edu> Description: Tuning parameter which (if non-zero) controls the goal - inode used by the inode allocator in p0reference to - all other allocation hueristics. This is intended for + inode used by the inode allocator in preference to + all other allocation heuristics. This is intended for debugging use only, and should be 0 on production systems. + +What: /sys/fs/ext4/<disk>/max_writeback_mb_bump +Date: September 2009 +Contact: "Theodore Ts'o" <tytso@mit.edu> +Description: + The maximum number of megabytes the writeback code will + try to write out before move on to another inode. |