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authorMark Fasheh <mark.fasheh@oracle.com>2007-01-17 12:31:35 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 15:01:31 -0700
commit363041a5f74b953ab6b705ac9c88e5eda218a24b (patch)
treec0661c3f88978f2049693682f1cb94b20a8454c0 /fs/ocfs2/alloc.h
parentdcd0538ff4e854fa9d7f4630b359ca8fdb5cb5a8 (diff)
downloadop-kernel-dev-363041a5f74b953ab6b705ac9c88e5eda218a24b.zip
op-kernel-dev-363041a5f74b953ab6b705ac9c88e5eda218a24b.tar.gz
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.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index b0880fd..bff2a16 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 */
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