nfsd: move some of fh_compose into helper functions

[safe/jmp/linux-2.6] / fs / ocfs2 / extent_map.h

diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index 625d0ee..b7dd973 100644 (file)
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -25,9 +25,60 @@
 #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);
+                      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);
+                               u64 *ret_count, unsigned int *extent_flags);
+
+int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+                u64 map_start, u64 map_len);
+
+int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster,
+                            u32 *p_cluster, u32 *num_clusters,
+                            struct ocfs2_extent_list *el);
+
+int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,
+                          struct buffer_head *bhs[], int flags,
+                          int (*validate)(struct super_block *sb,
+                                          struct buffer_head *bh));
+static inline int ocfs2_read_virt_block(struct inode *inode, u64 v_block,
+                                       struct buffer_head **bh,
+                                       int (*validate)(struct super_block *sb,
+                                                       struct buffer_head *bh))
+{
+       int status = 0;
+
+       if (bh == NULL) {
+               printk("ocfs2: bh == NULL\n");
+               status = -EINVAL;
+               goto bail;
+       }
+
+       status = ocfs2_read_virt_blocks(inode, v_block, 1, bh, 0, validate);
+
+bail:
+       return status;
+}
+
 
 #endif  /* _EXTENT_MAP_H */