nilfs2: accept future revisions
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Mon, 9 Aug 2010 15:58:41 +0000 (00:58 +0900)
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Sat, 23 Oct 2010 00:24:33 +0000 (09:24 +0900)
commit9566a7a851eb7201e3207eab53ee81efd0850fee
treeb2f57198a208e64576b951d001c6deb2c428770e
parentf5d9d249b9a6884daff513ef08afa43d3f7e085f
nilfs2: accept future revisions

Compatibility of nilfs partitions is now managed with three feature
sets.  This changes old compatibility check with revision number so
that it can accept future revisions.

Note that we can stop support of experimental versions of nilfs that
doesn't know the feature sets by incrementing NILFS_CURRENT_REV.  We
don't have to do it soon, but it would be a possible option whenever
the need arises.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
fs/nilfs2/the_nilfs.c
include/linux/nilfs2_fs.h