f2fs: avoid wrong count on dirty inodes

The number should be covered by spin_lock. Otherwise we can see wrong count
in f2fs_stat.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2016-06-02 11:08:56 -07:00
commit 338bbfa086