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| author | Ingo Molnar <[email protected]> | 2009-01-11 02:41:39 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-01-11 02:41:39 +0000 |
| commit | abede81c4fb2e3b85d8760f25e3da39d2c69a134 (patch) | |
| tree | 26c893ec108d837eb9171d678c55a1cea7b22af4 /fs/btrfs/locking.h | |
| parent | rcu: fix bug in rcutorture system-shutdown code (diff) | |
| parent | Linux 2.6.29-rc1 (diff) | |
| download | kernel-abede81c4fb2e3b85d8760f25e3da39d2c69a134.tar.gz kernel-abede81c4fb2e3b85d8760f25e3da39d2c69a134.zip | |
Merge commit 'v2.6.29-rc1' into core/urgent
Diffstat (limited to 'fs/btrfs/locking.h')
| -rw-r--r-- | fs/btrfs/locking.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h new file mode 100644 index 000000000000..bc1faef12519 --- /dev/null +++ b/fs/btrfs/locking.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2008 Oracle. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License v2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef __BTRFS_LOCKING_ +#define __BTRFS_LOCKING_ + +int btrfs_tree_lock(struct extent_buffer *eb); +int btrfs_tree_unlock(struct extent_buffer *eb); +int btrfs_tree_locked(struct extent_buffer *eb); +int btrfs_try_tree_lock(struct extent_buffer *eb); +int btrfs_path_lock_waiting(struct btrfs_path *path, int level); +#endif |