nilfs2: use root object to get ifile
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Sat, 14 Aug 2010 04:07:15 +0000 (13:07 +0900)
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Sat, 23 Oct 2010 00:24:35 +0000 (09:24 +0900)
This rewrites functions using ifile so that they get ifile from
nilfs_root object, and will remove sbi->s_ifile.  Some functions that
don't know the root object are extended to receive it from caller.

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

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