From dc17ff8f11d129db9e83ab7244769e4eae05e14d Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Tue, 8 Jan 2008 15:46:30 -0500 Subject: Btrfs: Add data=ordered support This forces file data extents down the disk along with the metadata that references them. The current implementation is fairly simple, and just writes out all of the dirty pages in an inode before the commit. Signed-off-by: Chris Mason --- fs/btrfs/ordered-data.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 fs/btrfs/ordered-data.h (limited to 'fs/btrfs/ordered-data.h') diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h new file mode 100644 index 00000000000..aaf9eb14271 --- /dev/null +++ b/fs/btrfs/ordered-data.h @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2007 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_ORDERED_DATA__ +#define __BTRFS_ORDERED_DATA__ + +struct btrfs_ordered_inode_tree { + rwlock_t lock; + struct rb_root tree; +}; + +static inline void +btrfs_ordered_inode_tree_init(struct btrfs_ordered_inode_tree *t) +{ + rwlock_init(&t->lock); + t->tree.rb_node = NULL; +} + +int btrfs_add_ordered_inode(struct inode *inode); +int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, + u64 *root_objectid, u64 *objectid); +int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, + u64 *root_objectid, u64 *objectid); +#endif -- cgit v1.2.3-70-g09d2