nilfs2: use device's backing_dev_info for btree node caches
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Wed, 27 May 2009 13:11:46 +0000 (22:11 +0900)
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Wed, 10 Jun 2009 14:41:12 +0000 (23:41 +0900)
Previously, default_backing_dev_info was used for the mapping of btree
node caches.  This uses device dependent backing_dev_info to allow
detailed control of the device for the btree node pages.

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

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