tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 2000-2003,2005 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_LRW_H__
19#define __XFS_LRW_H__
20
21struct xfs_mount;
22struct xfs_iocore;
23struct xfs_inode;
24struct xfs_bmbt_irec;
25struct xfs_buf;
26struct xfs_iomap;
27
28#if defined(XFS_RW_TRACE)
29/*
30 * Defines for the trace mechanisms in xfs_lrw.c.
31 */
32#define XFS_RW_KTRACE_SIZE 128
33
34#define XFS_READ_ENTER 1
35#define XFS_WRITE_ENTER 2
36#define XFS_IOMAP_READ_ENTER 3
37#define XFS_IOMAP_WRITE_ENTER 4
38#define XFS_IOMAP_READ_MAP 5
39#define XFS_IOMAP_WRITE_MAP 6
40#define XFS_IOMAP_WRITE_NOSPACE 7
41#define XFS_ITRUNC_START 8
42#define XFS_ITRUNC_FINISH1 9
43#define XFS_ITRUNC_FINISH2 10
44#define XFS_CTRUNC1 11
45#define XFS_CTRUNC2 12
46#define XFS_CTRUNC3 13
47#define XFS_CTRUNC4 14
48#define XFS_CTRUNC5 15
49#define XFS_CTRUNC6 16
50#define XFS_BUNMAP 17
51#define XFS_INVAL_CACHED 18
52#define XFS_DIORD_ENTER 19
53#define XFS_DIOWR_ENTER 20
54#define XFS_SENDFILE_ENTER 21
55#define XFS_WRITEPAGE_ENTER 22
56#define XFS_RELEASEPAGE_ENTER 23
57#define XFS_INVALIDPAGE_ENTER 24
58#define XFS_IOMAP_ALLOC_ENTER 25
59#define XFS_IOMAP_ALLOC_MAP 26
60#define XFS_IOMAP_UNWRITTEN 27
61#define XFS_SPLICE_READ_ENTER 28
62#define XFS_SPLICE_WRITE_ENTER 29
63extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
64 void *, size_t, loff_t, int);
65extern void xfs_inval_cached_trace(struct xfs_iocore *,
66 xfs_off_t, xfs_off_t, xfs_off_t, xfs_off_t);
67#else
68#define xfs_rw_enter_trace(tag, io, data, size, offset, ioflags)
69#define xfs_inval_cached_trace(io, offset, len, first, last)
70#endif
71
72extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
73extern int xfs_bdstrat_cb(struct xfs_buf *);
74extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
75
76extern int xfs_zero_eof(struct inode *, struct xfs_iocore *, xfs_off_t,
77 xfs_fsize_t);
78
79#endif /* __XFS_LRW_H__ */