fs/btrfs/ordered-data.h

   1 /*
   2  * Copyright (C) 2007 Oracle.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License v2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 021110-1307, USA.
  17  */
  18
  19 #ifndef __BTRFS_ORDERED_DATA__
  20 #define __BTRFS_ORDERED_DATA__
  21
  22 struct btrfs_ordered_inode_tree {
  23         rwlock_t lock;
  24         struct rb_root tree;
  25 };
  26
  27 static inline void
  28 btrfs_ordered_inode_tree_init(struct btrfs_ordered_inode_tree *t)
  29 {
  30         rwlock_init(&t->lock);
  31         t->tree.rb_node = NULL;
  32 }
  33
  34 int btrfs_add_ordered_inode(struct inode *inode);
  35 int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
  36                                        u64 *root_objectid, u64 *objectid);
  37 int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
  38                                        u64 *root_objectid, u64 *objectid);
  39 int btrfs_del_ordered_inode(struct inode *inode);
  40 #endif