tree 0aaee16c95e7a1a6ca4b1c7136bebf9dcea48a1b
parent cfb0a4bfd8736418cbe5cbc115cabc84b527111e
author Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1304526238 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1305033705 +0900

nilfs2: add truncation routine of segment usage file

When shrinking the filesystem, segments to be truncated must be test
if they are busy or not, and unneeded sufile block should be deleted.
This adds routines for the truncation.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>