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| author | Joel Becker <joel.becker@oracle.com> | 2008-08-20 19:36:33 -0700 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 16:57:05 -0700 |
| commit | f99b9b7ccf6a691f653cec45f36bfdd1e94769c7 (patch) | |
| tree | 1c6ff6ea1fa1bb86b70f1fd78dd725b559c729e4 /fs/ocfs2/suballoc.h | |
| parent | 1e61ee79e2a96f62c007486677319814ce621c3c (diff) | |
| download | blackbird-op-linux-f99b9b7ccf6a691f653cec45f36bfdd1e94769c7.tar.gz blackbird-op-linux-f99b9b7ccf6a691f653cec45f36bfdd1e94769c7.zip | |
ocfs2: Make ocfs2_extent_tree the first-class representation of a tree.
We now have three different kinds of extent trees in ocfs2: inode data
(dinode), extended attributes (xattr_tree), and extended attribute
values (xattr_value). There is a nice abstraction for them,
ocfs2_extent_tree, but it is hidden in alloc.c. All the calling
functions have to pick amongst a varied API and pass in type bits and
often extraneous pointers.
A better way is to make ocfs2_extent_tree a first-class object.
Everyone converts their object to an ocfs2_extent_tree() via the
ocfs2_get_*_extent_tree() calls, then uses the ocfs2_extent_tree for all
tree calls to alloc.c.
This simplifies a lot of callers, making for readability. It also
provides an easy way to add additional extent tree types, as they only
need to be defined in alloc.c with a ocfs2_get_<new>_extent_tree()
function.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/suballoc.h')
| -rw-r--r-- | fs/ocfs2/suballoc.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index 028fd633b44e..dd0963695edc 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -165,10 +165,8 @@ u64 ocfs2_which_cluster_group(struct inode *inode, u32 cluster); int ocfs2_check_group_descriptor(struct super_block *sb, struct ocfs2_dinode *di, struct ocfs2_group_desc *gd); -int ocfs2_lock_allocators(struct inode *inode, struct buffer_head *root_bh, - struct ocfs2_extent_list *root_el, +int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_extent_tree *et, u32 clusters_to_add, u32 extents_to_split, struct ocfs2_alloc_context **data_ac, - struct ocfs2_alloc_context **meta_ac, - enum ocfs2_extent_tree_type type, void *private); + struct ocfs2_alloc_context **meta_ac); #endif /* _CHAINALLOC_H_ */ |
