blob: 389579bd64e372e8294858d63d5b0d913fee648a [file] [log] [blame]
Mark Fashehccd979b2005-12-15 14:31:24 -08001/* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public
17 * License along with this program; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 021110-1307, USA.
20 */
21
22#ifndef OCFS2_AOPS_H
23#define OCFS2_AOPS_H
24
Mark Fasheh53013cb2006-05-05 19:04:03 -070025int ocfs2_prepare_write_nolock(struct inode *inode, struct page *page,
26 unsigned from, unsigned to);
Mark Fashehccd979b2005-12-15 14:31:24 -080027
Mark Fasheh1fabe142006-10-09 18:11:45 -070028handle_t *ocfs2_start_walk_page_trans(struct inode *inode,
Mark Fashehccd979b2005-12-15 14:31:24 -080029 struct page *page,
30 unsigned from,
31 unsigned to);
32
Mark Fasheh60b11392007-02-16 11:46:50 -080033int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno,
34 struct inode *inode, unsigned int from,
35 unsigned int to, int new);
36
37int walk_page_buffers( handle_t *handle,
38 struct buffer_head *head,
39 unsigned from,
40 unsigned to,
41 int *partial,
42 int (*fn)( handle_t *handle,
43 struct buffer_head *bh));
44
Mark Fasheh3a307ff2007-05-08 17:47:32 -070045int ocfs2_write_begin(struct file *file, struct address_space *mapping,
46 loff_t pos, unsigned len, unsigned flags,
47 struct page **pagep, void **fsdata);
Mark Fasheh9517bac2007-02-09 20:24:12 -080048
Mark Fasheh3a307ff2007-05-08 17:47:32 -070049int ocfs2_write_end(struct file *file, struct address_space *mapping,
50 loff_t pos, unsigned len, unsigned copied,
51 struct page *page, void *fsdata);
Mark Fasheh6af67d82007-03-06 17:24:46 -080052
Mark Fasheh7307de82007-05-09 15:16:19 -070053int ocfs2_write_end_nolock(struct address_space *mapping,
54 loff_t pos, unsigned len, unsigned copied,
55 struct page *page, void *fsdata);
56
57int ocfs2_write_begin_nolock(struct address_space *mapping,
58 loff_t pos, unsigned len, unsigned flags,
59 struct page **pagep, void **fsdata,
60 struct buffer_head *di_bh, struct page *mmap_page);
61
Mark Fashehccd979b2005-12-15 14:31:24 -080062/* all ocfs2_dio_end_io()'s fault */
63#define ocfs2_iocb_is_rw_locked(iocb) \
64 test_bit(0, (unsigned long *)&iocb->private)
Mark Fasheh7cdfc3a2007-04-16 17:28:51 -070065static inline void ocfs2_iocb_set_rw_locked(struct kiocb *iocb, int level)
66{
67 set_bit(0, (unsigned long *)&iocb->private);
68 if (level)
69 set_bit(1, (unsigned long *)&iocb->private);
70 else
71 clear_bit(1, (unsigned long *)&iocb->private);
72}
Mark Fashehccd979b2005-12-15 14:31:24 -080073#define ocfs2_iocb_clear_rw_locked(iocb) \
74 clear_bit(0, (unsigned long *)&iocb->private)
Mark Fasheh7cdfc3a2007-04-16 17:28:51 -070075#define ocfs2_iocb_rw_locked_level(iocb) \
76 test_bit(1, (unsigned long *)&iocb->private)
Mark Fashehccd979b2005-12-15 14:31:24 -080077#endif /* OCFS2_FILE_H */