X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=fs%2Focfs2%2Fextent_map.h;h=de91e3e41a224ac7f1eb39f1e35bdd22034d811a;hb=980110c5da56cb56d3356f5a5251fdc920f83ba6;hp=0031c59c347f3f33440211a983e8a81189b8de4a;hpb=49cb8d2d496ce06869ccca2ab368ed6b0b5b979d;p=~andy%2Flinux

diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index 0031c59c347..de91e3e41a2 100644
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -25,9 +25,29 @@
 #ifndef _EXTENT_MAP_H
 #define _EXTENT_MAP_H
 
+struct ocfs2_extent_map_item {
+	unsigned int			ei_cpos;
+	unsigned int			ei_phys;
+	unsigned int			ei_clusters;
+	unsigned int			ei_flags;
+
+	struct list_head		ei_list;
+};
+
+#define OCFS2_MAX_EXTENT_MAP_ITEMS			3
+struct ocfs2_extent_map {
+	unsigned int			em_num_items;
+	struct list_head		em_list;
+};
+
+void ocfs2_extent_map_init(struct inode *inode);
+void ocfs2_extent_map_trunc(struct inode *inode, unsigned int cluster);
+void ocfs2_extent_map_insert_rec(struct inode *inode,
+				 struct ocfs2_extent_rec *rec);
+
 int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster,
 		       u32 *num_clusters, unsigned int *extent_flags);
 int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno,
-				int *ret_count, unsigned int *extent_flags);
+				u64 *ret_count, unsigned int *extent_flags);
 
 #endif  /* _EXTENT_MAP_H */