sound: usxxx: cleanup chip field
[safe/jmp/linux-2.6] / fs / ocfs2 / refcounttree.h
index 9a3695c..c1d19b1 100644 (file)
@@ -33,4 +33,74 @@ struct ocfs2_refcount_tree {
        struct super_block *rf_sb;
 };
 
+void ocfs2_purge_refcount_trees(struct ocfs2_super *osb);
+int ocfs2_lock_refcount_tree(struct ocfs2_super *osb, u64 ref_blkno, int rw,
+                            struct ocfs2_refcount_tree **tree,
+                            struct buffer_head **ref_bh);
+void ocfs2_unlock_refcount_tree(struct ocfs2_super *osb,
+                               struct ocfs2_refcount_tree *tree,
+                               int rw);
+
+int ocfs2_decrease_refcount(struct inode *inode,
+                           handle_t *handle, u32 cpos, u32 len,
+                           struct ocfs2_alloc_context *meta_ac,
+                           struct ocfs2_cached_dealloc_ctxt *dealloc,
+                           int delete);
+int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
+                                         struct buffer_head *di_bh,
+                                         u64 phys_blkno,
+                                         u32 clusters,
+                                         int *credits,
+                                         struct ocfs2_alloc_context **meta_ac);
+int ocfs2_refcount_cow(struct inode *inode, struct buffer_head *di_bh,
+                      u32 cpos, u32 write_len, u32 max_cpos);
+
+typedef int (ocfs2_post_refcount_func)(struct inode *inode,
+                                      handle_t *handle,
+                                      void *para);
+/*
+ * Some refcount caller need to do more work after we modify the data b-tree
+ * during refcount operation(including CoW and add refcount flag), and make the
+ * transaction complete. So it must give us this structure so that we can do it
+ * within our transaction.
+ *
+ */
+struct ocfs2_post_refcount {
+       int credits;                    /* credits it need for journal. */
+       ocfs2_post_refcount_func *func; /* real function. */
+       void *para;
+};
+
+int ocfs2_refcounted_xattr_delete_need(struct inode *inode,
+                                      struct ocfs2_caching_info *ref_ci,
+                                      struct buffer_head *ref_root_bh,
+                                      struct ocfs2_xattr_value_root *xv,
+                                      int *meta_add, int *credits);
+int ocfs2_refcount_cow_xattr(struct inode *inode,
+                            struct ocfs2_dinode *di,
+                            struct ocfs2_xattr_value_buf *vb,
+                            struct ocfs2_refcount_tree *ref_tree,
+                            struct buffer_head *ref_root_bh,
+                            u32 cpos, u32 write_len,
+                            struct ocfs2_post_refcount *post);
+int ocfs2_add_refcount_flag(struct inode *inode,
+                           struct ocfs2_extent_tree *data_et,
+                           struct ocfs2_caching_info *ref_ci,
+                           struct buffer_head *ref_root_bh,
+                           u32 cpos, u32 p_cluster, u32 num_clusters,
+                           struct ocfs2_cached_dealloc_ctxt *dealloc,
+                           struct ocfs2_post_refcount *post);
+int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh);
+int ocfs2_try_remove_refcount_tree(struct inode *inode,
+                                  struct buffer_head *di_bh);
+int ocfs2_increase_refcount(handle_t *handle,
+                           struct ocfs2_caching_info *ci,
+                           struct buffer_head *ref_root_bh,
+                           u64 cpos, u32 len,
+                           struct ocfs2_alloc_context *meta_ac,
+                           struct ocfs2_cached_dealloc_ctxt *dealloc);
+int ocfs2_reflink_ioctl(struct inode *inode,
+                       const char __user *oldname,
+                       const char __user *newname,
+                       bool preserve);
 #endif /* OCFS2_REFCOUNTTREE_H */