tree c4ce295d803c5f862c678a2ee504dbedbfe95a6e
parent 489406626c42c0176fddae2182d33be2cfb9840c
author Andrei Popa <andrei.popa@i-neo.ro> 1348152131 -0600
committer Chris Mason <chris.mason@fusionio.com> 1349788803 -0400

Btrfs: make compress and nodatacow mount options mutually exclusive

If a filesystem is mounted with compression and then remounted by adding nodatacow,
the compression is disabled but the compress flag is still visible.
Also, if a filesystem is mounted with nodatacow and then remounted with compression,
nodatacow flag is still present but it's not active.
This patch:
- removes compress flags and notifies that the compression has been disabled if the
  filesystem is mounted with nodatacow
- removes nodatacow and nodatasum flags if mounted with compress.

Signed-off-by: Andrei Popa <andrei.popa@i-neo.ro>