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@@ -385,6 +385,52 @@ static struct ocfs2_extent_tree_operations ocfs2_dx_root_et_ops = {
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.eo_fill_root_el = ocfs2_dx_root_fill_root_el,
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};
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+static void ocfs2_refcount_tree_fill_root_el(struct ocfs2_extent_tree *et)
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+{
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+ struct ocfs2_refcount_block *rb = et->et_object;
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+
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+ et->et_root_el = &rb->rf_list;
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+}
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+
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+static void ocfs2_refcount_tree_set_last_eb_blk(struct ocfs2_extent_tree *et,
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+ u64 blkno)
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+{
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+ struct ocfs2_refcount_block *rb = et->et_object;
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+
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+ rb->rf_last_eb_blk = cpu_to_le64(blkno);
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+}
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+
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+static u64 ocfs2_refcount_tree_get_last_eb_blk(struct ocfs2_extent_tree *et)
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+{
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+ struct ocfs2_refcount_block *rb = et->et_object;
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+
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+ return le64_to_cpu(rb->rf_last_eb_blk);
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+}
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+
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+static void ocfs2_refcount_tree_update_clusters(struct ocfs2_extent_tree *et,
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+ u32 clusters)
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+{
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+ struct ocfs2_refcount_block *rb = et->et_object;
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+
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+ le32_add_cpu(&rb->rf_clusters, clusters);
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+}
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+
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+static enum ocfs2_contig_type
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+ocfs2_refcount_tree_extent_contig(struct ocfs2_extent_tree *et,
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+ struct ocfs2_extent_rec *ext,
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+ struct ocfs2_extent_rec *insert_rec)
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+{
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+ return CONTIG_NONE;
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+}
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+
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+static struct ocfs2_extent_tree_operations ocfs2_refcount_tree_et_ops = {
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+ .eo_set_last_eb_blk = ocfs2_refcount_tree_set_last_eb_blk,
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+ .eo_get_last_eb_blk = ocfs2_refcount_tree_get_last_eb_blk,
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+ .eo_update_clusters = ocfs2_refcount_tree_update_clusters,
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+ .eo_fill_root_el = ocfs2_refcount_tree_fill_root_el,
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+ .eo_extent_contig = ocfs2_refcount_tree_extent_contig,
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+};
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+
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static void __ocfs2_init_extent_tree(struct ocfs2_extent_tree *et,
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struct ocfs2_caching_info *ci,
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struct buffer_head *bh,
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@@ -439,6 +485,14 @@ void ocfs2_init_dx_root_extent_tree(struct ocfs2_extent_tree *et,
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NULL, &ocfs2_dx_root_et_ops);
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}
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+void ocfs2_init_refcount_extent_tree(struct ocfs2_extent_tree *et,
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+ struct ocfs2_caching_info *ci,
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+ struct buffer_head *bh)
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+{
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+ __ocfs2_init_extent_tree(et, ci, bh, ocfs2_journal_access_rb,
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+ NULL, &ocfs2_refcount_tree_et_ops);
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+}
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+
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static inline void ocfs2_et_set_last_eb_blk(struct ocfs2_extent_tree *et,
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u64 new_last_eb_blk)
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{
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