kernel.git/fs/nilfs2/bmap.c, branch linux-2.6.30.y

nilfs2: fix lockdep recursive locking warning on bmap

2009-04-13T00:53:49Z

The bmap semaphore of DAT file can be held while a bmap of other files is locked. This has caused the following false detection of lockdep check: mount.nilfs2/4667 is trying to acquire lock: (&bmap->b_sem){..--}, at: [] nilfs_bmap_lookup_at_level+0x1a/0x74 [nilfs2] but task is already holding lock: (&bmap->b_sem){..--}, at: [] nilfs_bmap_lookup_at_level+0x1a/0x74 [nilfs2] This will fix the false detection by distinguishing semaphores of the DAT and other files. Signed-off-by: Ryusuke Konishi

nilfs2: clean up indirect function calling conventions

2009-04-07T15:31:17Z

This cleans up the strange indirect function calling convention used in nilfs to follow the normal kernel coding style. Signed-off-by: Pekka Enberg Acked-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: integrated block mapping

2009-04-07T15:31:13Z

This adds structures and operations for the block mapping (bmap for short). NILFS2 uses direct mappings for short files or B-tree based mappings for longer files. Every on-disk data block is held with inodes and managed through this block mapping. The nilfs_bmap structure and a set of functions here provide this capability to the NILFS2 inode. [penberg@cs.helsinki.fi: remove a bunch of bmap wrapper macros] [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Koji Sato Signed-off-by: Ryusuke Konishi Signed-off-by: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds