tree ad0adcd8377412184a9a5bac9fea3191cbea29ca
parent 091bf7624d1c90cec9e578a18529f615213ff847
author Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1240929526 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1241843816 +0900

nilfs2: fix possible recovery failure due to block creation without writer

Some function calls in nilfs_prepare_segment_for_recovery() may fail
because they can create blocks on meta data files without configuring
a writable FS-instance.  Concretely, nilfs_mdt_create_block() routine
of meta data files will fail in that case.

This fixes the problem by temporarily attaching a writable FS-instace
during the function is called.

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