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path: root/fs/nilfs2/btree.h
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* nilfs2: remove nilfs_btree_operations from btree mappingRyusuke Konishi2009-06-101-26/+0
| | | | | | | will remove indirect function calls using nilfs_btree_operations table. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
* nilfs2: remove useless b_low and b_high fields from nilfs_bmap structRyusuke Konishi2009-06-101-3/+2
| | | | | | | | | | | This will cut off 16 bytes from the nilfs_bmap struct which is embedded in the on-memory inode of nilfs. The b_high field was never used, and the b_low field stores a constant value which can be determined by whether the inode uses btree for block mapping or not. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
* nilfs2: B-tree based block mappingKoji Sato2009-04-071-0/+117
This adds declarations and functions of NILFS2 B-tree. Two variants are integrated in the NILFS2 B-tree. The B-tree for the most files points to the child nodes or data blocks with virtual block addresses, whereas the B-tree of the DAT uses actual block addresses. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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