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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-01-17 12:31:35 -0800 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-04-26 15:01:31 -0700 |
| commit | 363041a5f74b953ab6b705ac9c88e5eda218a24b (patch) | |
| tree | c0661c3f88978f2049693682f1cb94b20a8454c0 /fs/ocfs2/alloc.h | |
| parent | dcd0538ff4e854fa9d7f4630b359ca8fdb5cb5a8 (diff) | |
| download | lwn-363041a5f74b953ab6b705ac9c88e5eda218a24b.tar.gz lwn-363041a5f74b953ab6b705ac9c88e5eda218a24b.zip | |
ocfs2: temporarily remove extent map caching
The code in extent_map.c is not prepared to deal with a subtree being
rotated between lookups. This can happen when filling holes in sparse files.
Instead of a lengthy patch to update the code (which would likely lose the
benefit of caching subtree roots), we remove most of the algorithms and
implement a simple path based lookup. A less ambitious extent caching scheme
will be added in a later patch.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/alloc.h')
| -rw-r--r-- | fs/ocfs2/alloc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h index b0880fdb3108..bff2a162b030 100644 --- a/fs/ocfs2/alloc.h +++ b/fs/ocfs2/alloc.h @@ -80,4 +80,7 @@ int ocfs2_commit_truncate(struct ocfs2_super *osb, struct buffer_head *fe_bh, struct ocfs2_truncate_context *tc); +int ocfs2_find_leaf(struct inode *inode, struct ocfs2_extent_list *root_el, + u32 cpos, struct buffer_head **leaf_bh); + #endif /* OCFS2_ALLOC_H */ |