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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-10-30 00:09:18 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-10-30 00:09:18 -0700 |
| commit | 68fe0f0a6dcd2ac1ace5da3647a6d1cf0f4d2fea (patch) | |
| tree | 69d855c2e46d42ef8f23680cf3a1e6ff38de9ef4 /Documentation/ABI/testing/sysfs-fs-ext4 | |
| parent | 88fd449e734a4264347e12b8ff74ccb33a9b9a35 (diff) | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
Merge tag 'v3.7-rc3' into for-linus to sync up with recent USB changes
Diffstat (limited to 'Documentation/ABI/testing/sysfs-fs-ext4')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-ext4 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4 index f22ac0872ae8..c631253cf85c 100644 --- a/Documentation/ABI/testing/sysfs-fs-ext4 +++ b/Documentation/ABI/testing/sysfs-fs-ext4 @@ -96,3 +96,16 @@ 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. + +What: /sys/fs/ext4/<disk>/extent_max_zeroout_kb +Date: August 2012 +Contact: "Theodore Ts'o" <tytso@mit.edu> +Description: + The maximum number of kilobytes which will be zeroed + out in preference to creating a new uninitialized + extent when manipulating an inode's extent tree. Note + that using a larger value will increase the + variability of time necessary to complete a random + write operation (since a 4k random write might turn + into a much larger write due to the zeroout + operation). |