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| author | David Vrabel <david.vrabel@csr.com> | 2009-01-22 19:12:32 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@csr.com> | 2009-01-22 19:12:32 +0000 |
| commit | dff243f7cb3a2ebbb09093066c1bc4a90ff5b3a4 (patch) | |
| tree | 1c63e7c2f879cd322ca785671b74b4ff796dd24c /fs/btrfs/locking.h | |
| parent | a5e6ced58d423cb09c4fc0087dcfdb0b5deb5e1c (diff) | |
| parent | f3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
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 00000000000..bc1faef1251 --- /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 |