From: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Date: Sat, 14 Aug 2010 12:44:51 +0000 (+0900)
Subject: nilfs2: use checkpoint tree for mount check of snapshots
X-Git-Tag: v2.6.37-rc1~150^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd52202930b7e8db48bee5a6fc6b1f438e822a23;p=pandora-kernel.git

nilfs2: use checkpoint tree for mount check of snapshots

This rewrites nilfs_checkpoint_is_mounted() function so that it
decides whether a checkpoint is mounted by whether the corresponding
root object is found in checkpoint tree.

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