quota_v2: Implement get_next_id() for V2 quota format

Implement functions to get id of next existing quota structure in quota
file for quota tree based formats and thus for V2 quota format.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2016-01-25 20:39:27 +01:00
commit 0066373d9f
3 changed files with 73 additions and 2 deletions