tree ff36126763b2315c15906b79fb85b3d532d82d56
parent acc84b05b1f463952a638689335ca47e70d5ea30
author Jan Kara <jack@suse.com> 1436878505 +0200
committer Jan Kara <jack@suse.com> 1437677979 +0200

doc: Update doc about journalling layer

Documentation of journalling layer in
Documentation/DocBook/filesystems.tmpl speaks about JBD layer. Since
that is going away, update the documentation to speak about JBD2. Also
update the parts that have changed since someone last touched the
document and remove some parts which are just misleading and outdated.

Signed-off-by: Jan Kara <jack@suse.com>