1 files changed, 24 insertions, 0 deletions

diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index 1c4aa8b06f34..b7dd9731b462 100644
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -57,4 +57,28 @@ 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 */