[Attribute] Data journaling [lsattr flag] j [chattr option] +j to set -j to clear[note 3] [Semantics and rationale] 
A file with the j attribute has all of its data written to the ext3 journal before being written to the file itself, if the filesystem is mounted with the "data=ordered" or "data=writeback" options. When the filesystem is mounted with the "data=journal" option all file data is already journaled, so this attribute has no effect.