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authorJoel Becker <joel.becker@oracle.com>2008-08-21 06:36:33 +0400
committerMark Fasheh <mfasheh@suse.com>2008-10-14 03:57:05 +0400
commitf99b9b7ccf6a691f653cec45f36bfdd1e94769c7 (patch)
tree1c6ff6ea1fa1bb86b70f1fd78dd725b559c729e4 /fs/ocfs2/suballoc.h
parent1e61ee79e2a96f62c007486677319814ce621c3c (diff)
downloadlinux-f99b9b7ccf6a691f653cec45f36bfdd1e94769c7.tar.xz
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.h6
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_ */