1/*
 2 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
 3 * All Rights Reserved.
 4 *
 5 * This program is free software; you can redistribute it and/or
 6 * modify it under the terms of the GNU General Public License as
 7 * published by the Free Software Foundation.
 8 *
 9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17 */
18#ifndef __XFS_AOPS_H__
19#define __XFS_AOPS_H__
20
21extern struct bio_set *xfs_ioend_bioset;
22
23/*
24 * Types of I/O for bmap clustering and I/O completion tracking.
25 */
26enum {
27	XFS_IO_INVALID,		/* initial state */
28	XFS_IO_DELALLOC,	/* covers delalloc region */
29	XFS_IO_UNWRITTEN,	/* covers allocated but uninitialized data */
30	XFS_IO_OVERWRITE,	/* covers already allocated extent */
31	XFS_IO_COW,		/* covers copy-on-write extent */
32};
33
34#define XFS_IO_TYPES \
35	{ XFS_IO_INVALID,		"invalid" }, \
36	{ XFS_IO_DELALLOC,		"delalloc" }, \
37	{ XFS_IO_UNWRITTEN,		"unwritten" }, \
38	{ XFS_IO_OVERWRITE,		"overwrite" }, \
39	{ XFS_IO_COW,			"CoW" }
40
41/*
42 * Structure for buffered I/O completions.
43 */
44struct xfs_ioend {
45	struct list_head	io_list;	/* next ioend in chain */
46	unsigned int		io_type;	/* delalloc / unwritten */
 
47	struct inode		*io_inode;	/* file being written to */
48	size_t			io_size;	/* size of the extent */
49	xfs_off_t		io_offset;	/* offset in the file */
50	struct work_struct	io_work;	/* xfsdatad work queue */
51	struct xfs_trans	*io_append_trans;/* xact. for size update */
52	struct bio		*io_bio;	/* bio being built */
53	struct bio		io_inline_bio;	/* MUST BE LAST! */
54};
55
56extern const struct address_space_operations xfs_address_space_operations;
57extern const struct address_space_operations xfs_dax_aops;
58
59int	xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);
60
61extern void xfs_count_page_state(struct page *, int *, int *);
62extern struct block_device *xfs_find_bdev_for_inode(struct inode *);
63extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *);
64
65#endif /* __XFS_AOPS_H__ */

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef __XFS_AOPS_H__
 7#define __XFS_AOPS_H__
 8
 9extern struct bio_set xfs_ioend_bioset;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10
11/*
12 * Structure for buffered I/O completions.
13 */
14struct xfs_ioend {
15	struct list_head	io_list;	/* next ioend in chain */
16	int			io_fork;	/* inode fork written back */
17	xfs_exntst_t		io_state;	/* extent state */
18	struct inode		*io_inode;	/* file being written to */
19	size_t			io_size;	/* size of the extent */
20	xfs_off_t		io_offset;	/* offset in the file */
 
21	struct xfs_trans	*io_append_trans;/* xact. for size update */
22	struct bio		*io_bio;	/* bio being built */
23	struct bio		io_inline_bio;	/* MUST BE LAST! */
24};
25
26extern const struct address_space_operations xfs_address_space_operations;
27extern const struct address_space_operations xfs_dax_aops;
28
29int	xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);
30
 
31extern struct block_device *xfs_find_bdev_for_inode(struct inode *);
32extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *);
33
34#endif /* __XFS_AOPS_H__ */