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authorJoel Becker <joel.becker@oracle.com>2009-02-13 04:32:34 +0300
committerJoel Becker <joel.becker@oracle.com>2009-09-05 03:07:51 +0400
commitd9a0a1f83bf083b55b3c1f16efddecc31abace61 (patch)
tree7e75311f678fb943f2a0b14c91a0877fd7813efe /fs/ocfs2/alloc.h
parent0cf2f7632b1789b811ab20b611c4156e6de2b055 (diff)
downloadlinux-d9a0a1f83bf083b55b3c1f16efddecc31abace61.tar.xz
ocfs2: Store the ocfs2_caching_info on ocfs2_extent_tree.
What do we cache? Metadata blocks. What are most of our non-inode metadata blocks? Extent blocks for our btrees. struct ocfs2_extent_tree is the main structure for managing those. So let's store the associated ocfs2_caching_info there. This means that ocfs2_et_root_journal_access() doesn't need struct inode anymore, and any place that has an et can refer to et->et_ci instead of INODE_CACHE(inode). Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/alloc.h')
-rw-r--r--fs/ocfs2/alloc.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 353254ba29e1..285d40b4b0fb 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -45,7 +45,8 @@
*
* ocfs2_extent_tree contains info for the root of the b-tree, it must have a
* root ocfs2_extent_list and a root_bh so that they can be used in the b-tree
- * functions. With metadata ecc, we now call different journal_access
+ * functions. It needs the ocfs2_caching_info structure associated with
+ * I/O on the tree. With metadata ecc, we now call different journal_access
* functions for each type of metadata, so it must have the
* root_journal_access function.
* ocfs2_extent_tree_operations abstract the normal operations we do for
@@ -56,6 +57,7 @@ struct ocfs2_extent_tree {
struct ocfs2_extent_tree_operations *et_ops;
struct buffer_head *et_root_bh;
struct ocfs2_extent_list *et_root_el;
+ struct ocfs2_caching_info *et_ci;
ocfs2_journal_access_func et_root_journal_access;
void *et_object;
unsigned int et_max_leaf_clusters;