1 /* 2 * Copyright (C) 2008 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_LOCKING_ 20 #define __BTRFS_LOCKING_ 21 22 int btrfs_tree_lock(struct extent_buffer *eb); 23 int btrfs_tree_unlock(struct extent_buffer *eb); 24 25 int btrfs_try_tree_lock(struct extent_buffer *eb); 26 int btrfs_try_spin_lock(struct extent_buffer *eb); 27 28 void btrfs_set_lock_blocking(struct extent_buffer *eb); 29 void btrfs_clear_lock_blocking(struct extent_buffer *eb); 30 void btrfs_assert_tree_locked(struct extent_buffer *eb); 31 #endif 32