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linux-next/fs/btrfs/ordered-data.h
Chris Mason 81d7ed29ff Btrfs: Throttle file_write when data=ordered is flushing the inode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00

44 lines
1.4 KiB
C

/*
* 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,
struct inode **inode);
int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree,
u64 *root_objectid, u64 *objectid,
struct inode **inode);
int btrfs_del_ordered_inode(struct inode *inode);
int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode);
#endif