BMC/Intel-BMC/linux.git/fs/nilfs2/mdt.h, branch dev

nilfs2: add helper to find existent block on metadata file

2015-04-17T13:04:04+00:00

Add a new metadata file function, nilfs_mdt_find_block(), which finds an existent block on a metadata file in a given range of blocks. This function skips continuous hole blocks efficiently by using nilfs_bmap_seek_key(). Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: use bgl_lock_ptr()

2015-04-17T13:04:03+00:00

Simplify nilfs_mdt_bgl_lock() by utilizing bgl_lock_ptr() helper in . Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: add omitted comments for different structures in driver implementation

2012-07-31T00:25:19+00:00

Add omitted comments for different structures in driver implementation. Signed-off-by: Vyacheslav Dubeyko Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty

2011-05-10T13:21:57+00:00

This replaces nilfs_mdt_mark_buffer_dirty and nilfs_btnode_mark_dirty macros with mark_buffer_dirty and gets rid of nilfs_mark_buffer_dirty, an own mark buffer dirty function. Signed-off-by: Ryusuke Konishi

nilfs2: get rid of NILFS_I_NILFS

2011-05-10T13:21:56+00:00

This replaces all references of NILFS_I_NILFS(inode)->ns_bdev with inode->i_sb->s_bdev and unfolds remaining uses of NILFS_I_NILFS inline function. Before 2.6.37, referring to a nilfs object from inodes needed a conditional judgement, and NILFS_I_NILFS was helpful to simplify it. But now we can simply do it by going through a super block instance like inode->i_sb->s_fs_info. Signed-off-by: Ryusuke Konishi

nilfs2: get rid of nilfs_sb_info structure

2011-03-09T02:54:26+00:00

This directly uses sb->s_fs_info to keep a nilfs filesystem object and fully removes the intermediate nilfs_sb_info structure. With this change, the hierarchy of on-memory structures of nilfs will be simplified as follows: Before: super_block -> nilfs_sb_info -> the_nilfs -> cptree --+-> nilfs_root (current file system) +-> nilfs_root (snapshot A) +-> nilfs_root (snapshot B) : -> nilfs_sc_info (log writer structure) After: super_block -> the_nilfs -> cptree --+-> nilfs_root (current file system) +-> nilfs_root (snapshot A) +-> nilfs_root (snapshot B) : -> nilfs_sc_info (log writer structure) The reason why we didn't design so from the beginning is because the initial shape also differed from the above. The early hierachy was composed of "per-mount-point" super_block -> nilfs_sb_info pairs and a shared nilfs object. On the kernel 2.6.37, it was changed to the current shape in order to unify super block instances into one per device, and this cleanup became applicable as the result. Signed-off-by: Ryusuke Konishi

nilfs2: remove own inode allocator and destructor for metadata files

2010-10-23T00:24:39+00:00

This finally removes own inode allocator and destructor functions for metadata files. Several routines, nilfs_mdt_new(), nilfs_mdt_new_common(), nilfs_mdt_clear(), nilfs_mdt_destroy(), and nilfs_alloc_inode_common() will be gone. Signed-off-by: Ryusuke Konishi

nilfs2: get rid of mi_nilfs back pointer to nilfs object

2010-10-23T00:24:38+00:00

This removes a back pointer to nilfs object from nilfs_mdt_info structure that is attached to metadata files. Signed-off-by: Ryusuke Konishi

nilfs2: use iget for all metadata files

2010-10-23T00:24:38+00:00

This makes use of iget5_locked to allocate or get inode for metadata files to stop using own inode allocator. Signed-off-by: Ryusuke Konishi

nilfs2: get rid of GCDAT inode

2010-10-23T00:24:38+00:00

This applies prepared rollback function and redirect function of metadata file to DAT file, and eliminates GCDAT inode. Signed-off-by: Ryusuke Konishi