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authorTao Ma <tao.ma@oracle.com>2008-08-18 05:38:44 -0400
committerMark Fasheh <mfasheh@suse.com>2008-10-13 16:57:58 -0400
commite7d4cb6bc19658646357eeff134645cd9bc3479f (patch)
tree4e24321e5c28fb90dffa1f396972fddb3c458e58 /fs/ocfs2/file.h
parent811f933df1e55615fd0bb4818f31e3868a8e6e23 (diff)
ocfs2: Abstract ocfs2_extent_tree in b-tree operations.
In the old extent tree operation, we take the hypothesis that we are using the ocfs2_extent_list in ocfs2_dinode as the tree root. As xattr will also use ocfs2_extent_list to store large value for a xattr entry, we refactor the tree operation so that xattr can use it directly. The refactoring includes 4 steps: 1. Abstract set/get of last_eb_blk and update_clusters since they may be stored in different location for dinode and xattr. 2. Add a new structure named ocfs2_extent_tree to indicate the extent tree the operation will work on. 3. Remove all the use of fe_bh and di, use root_bh and root_el in extent tree instead. So now all the fe_bh is replaced with et->root_bh, el with root_el accordingly. 4. Make ocfs2_lock_allocators generic. Now it is limited to be only used in file extend allocation. But the whole function is useful when we want to store large EAs. Note: This patch doesn't touch ocfs2_commit_truncate() since it is not used for anything other than truncate inode data btrees. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/file.h')
-rw-r--r--fs/ocfs2/file.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index c96b8054fbe7..18e5c80cc737 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -57,10 +57,6 @@ int ocfs2_do_extend_allocation(struct ocfs2_super *osb,
57 enum ocfs2_alloc_restarted *reason_ret); 57 enum ocfs2_alloc_restarted *reason_ret);
58int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size, 58int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size,
59 u64 zero_to); 59 u64 zero_to);
60int ocfs2_lock_allocators(struct inode *inode, struct buffer_head *fe,
61 u32 clusters_to_add, u32 extents_to_split,
62 struct ocfs2_alloc_context **data_ac,
63 struct ocfs2_alloc_context **meta_ac);
64int ocfs2_setattr(struct dentry *dentry, struct iattr *attr); 60int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
65int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, 61int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
66 struct kstat *stat); 62 struct kstat *stat);