tree a03bfd25a6b2736a0fec40c9282bb235691ccc0c
parent 10ff885ba6f56bf7480ce3b5daf38c07600ecea3
author Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1278756589 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1279846933 +0900

nilfs2: get rid of nilfs_btree uses

This replaces all uses of nilfs_btree struct in implementation of
btree mapping with nilfs_bmap struct.

Name of local variable "btree" is kept not to bloat amount of change.
And, a part of local variables "bmap" is renamed to "btree" to uniform
naming rule.

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