From 6f9524e9e118929f1de02840dffe858f99685aea Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 21 Feb 2011 20:16:21 -0500 Subject: 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 Signed-off-by: "Theodore Ts'o" --- Documentation/ABI/testing/sysfs-fs-ext4 | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Documentation/ABI/testing/sysfs-fs-ext4') 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//inode_readahead +What: /sys/fs/ext4//inode_readahead_blks Date: March 2008 Contact: "Theodore Ts'o" Description: @@ -85,7 +85,14 @@ Date: June 2008 Contact: "Theodore Ts'o" 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//max_writeback_mb_bump +Date: September 2009 +Contact: "Theodore Ts'o" +Description: + The maximum number of megabytes the writeback code will + try to write out before move on to another inode. -- cgit v1.2.3