[SCSI] mptfusion: Increase scsi-timeouts, similariy to the LSI 4.x driver.

[linux-2.6-omap-h63xx.git] / Documentation / filesystems / ext4.txt

diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 0d5394920a31c146ef85cc4df64107e37a6ae386..eb154ef36c2a4b708004ff08660f2a7ebe971fa7 100644 (file)
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -32,9 +32,9 @@ Mailing list: linux-ext4@vger.kernel.org
     you will need to merge your changes with the version from e2fsprogs
     1.41.x.
 
-  - Create a new filesystem using the ext4dev filesystem type:
+  - Create a new filesystem using the ext4 filesystem type:
 
-       # mke2fs -t ext4dev /dev/hda1
+       # mke2fs -t ext4 /dev/hda1
 
     Or configure an existing ext3 filesystem to support extents and set
     the test_fs flag to indicate that it's ok for an in-development
@@ -47,13 +47,13 @@ Mailing list: linux-ext4@vger.kernel.org
 
         # tune2fs -I 256 /dev/hda1
 
-    (Note: we currently do not have tools to convert an ext4dev
+    (Note: we currently do not have tools to convert an ext4
     filesystem back to ext3; so please do not do try this on production
     filesystems.)
 
   - Mounting:
 
-       # mount -t ext4dev /dev/hda1 /wherever
+       # mount -t ext4 /dev/hda1 /wherever
 
   - When comparing performance with other filesystems, remember that
     ext3/4 by default offers higher data integrity guarantees than most.
@@ -177,6 +177,11 @@ barrier=<0|1(*)>   This enables/disables the use of write barriers in
                        your disks are battery-backed in one way or another,
                        disabling barriers may safely improve performance.
 
+inode_readahead=n      This tuning parameter controls the maximum
+                       number of inode table blocks that ext4's inode
+                       table readahead algorithm will pre-read into
+                       the buffer cache.  The default value is 32 blocks.
+
 orlov          (*)     This enables the new Orlov block allocator. It is
                        enabled by default.
 
@@ -218,6 +223,11 @@ errors=remount-ro(*)       Remount the filesystem read-only on an error.
 errors=continue                Keep going on a filesystem error.
 errors=panic           Panic and halt the machine if an error occurs.
 
+data_err=ignore(*)     Just print an error message if an error occurs
+                       in a file data buffer in ordered mode.
+data_err=abort         Abort the journal if an error occurs in a file
+                       data buffer in ordered mode.
+
 grpid                  Give objects the same group ID as their creator.
 bsdgroups
 
@@ -252,6 +262,7 @@ stripe=n            Number of filesystem blocks that mballoc will try
 delalloc       (*)     Deferring block allocation until write-out time.
 nodelalloc             Disable delayed allocation. Blocks are allocation
                        when data is copied from user to page cache.
+
 Data Mode
 =========
 There are 3 different data modes: