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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-06-18 10:48:04 -0700 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-07-10 17:32:00 -0700 |
| commit | 328d5752e1259dfb29b7e65f6c2d145fddbaa750 (patch) | |
| tree | 08198271a0382cafcc4c0de2fc1efcf35cb400af /fs/ocfs2/alloc.h | |
| parent | c3afcbb34426a9291e4c038540129053a72c3cd8 (diff) | |
| download | lwn-328d5752e1259dfb29b7e65f6c2d145fddbaa750.tar.gz lwn-328d5752e1259dfb29b7e65f6c2d145fddbaa750.zip | |
ocfs2: btree changes for unwritten extents
Writes to a region marked as unwritten might result in a record split or
merge. We can support splits by making minor changes to the existing insert
code. Merges require left rotations which mostly re-use right rotation
support functions.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/alloc.h')
| -rw-r--r-- | fs/ocfs2/alloc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index cb02e53b593c..d3acf45225c2 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -35,6 +35,11 @@ int ocfs2_insert_extent(struct ocfs2_super *osb, u64 start_blk, u32 new_clusters, struct ocfs2_alloc_context *meta_ac); +struct ocfs2_cached_dealloc_ctxt; +int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *di_bh, + handle_t *handle, u32 cpos, u32 len, u32 phys, + struct ocfs2_alloc_context *meta_ac, + struct ocfs2_cached_dealloc_ctxt *dealloc); int ocfs2_num_free_extents(struct ocfs2_super *osb, struct inode *inode, struct ocfs2_dinode *fe); @@ -102,6 +107,7 @@ int ocfs2_commit_truncate(struct ocfs2_super *osb, int ocfs2_find_leaf(struct inode *inode, struct ocfs2_extent_list *root_el, u32 cpos, struct buffer_head **leaf_bh); +int ocfs2_search_extent_list(struct ocfs2_extent_list *el, u32 v_cluster); /* * Helper function to look at the # of clusters in an extent record. |