tree 7adf4b71aba4bdf31dc05489a06933c48a0ea6f2
parent 4d8d9293dce503eb0e083e17a02a328d397e7f00
author Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1282836182 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1287793474 +0900

nilfs2: make snapshots in checkpoint tree exportable

The previous export operations cannot handle multiple versions of
a filesystem if they belong to the same sb instance.

This adds a new type of file handle and extends export operations so
that they can get the inode specified by a checkpoint number as well
as an inode number and a generation number.

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