My first patch, hope it goes through ok! Applies to 2.6.28-rc6-00184-gd9d060a. Compare ext4's journalling with anything but ext3's. These use the same journalling modes, most other Linux filesystems do only metadata journalling. Signed-off-by: Harald Arnesen <harald@xxxxxxxxxxx> ======================================================================== diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 174eaff..5bbe79e 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -61,7 +61,7 @@ Note: More extensive information for getting started with ext4 can be - When comparing performance with other filesystems, remember that ext3/4 by default offers higher data integrity guarantees than most. So when comparing with a metadata-only journalling filesystem, such - as ext3, use `mount -o data=writeback'. And you might as well use + as jfs or xfs, use `mount -o data=writeback'. And you might as well use `mount -o nobh' too along with it. Making the journal larger than the mke2fs default often helps performance with metadata-intensive workloads. -- Hilsen Harald. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html