1/*
 2 * Copyright (c) 2000-2005 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_VNODE_H__
19#define __XFS_VNODE_H__
20
21#include "xfs_fs.h"
22
23struct file;
24struct xfs_inode;
25struct xfs_iomap;
26struct attrlist_cursor_kern;
27
28/*
29 * Return values for xfs_inactive.  A return value of
30 * VN_INACTIVE_NOCACHE implies that the file system behavior
31 * has disassociated its state and bhv_desc_t from the vnode.
32 */
33#define	VN_INACTIVE_CACHE	0
34#define	VN_INACTIVE_NOCACHE	1
35
36/*
37 * Flags for read/write calls - same values as IRIX
38 */
39#define IO_ISDIRECT	0x00004		/* bypass page cache */
40#define IO_INVIS	0x00020		/* don't update inode timestamps */
41
42#define XFS_IO_FLAGS \
43	{ IO_ISDIRECT,	"DIRECT" }, \
44	{ IO_INVIS,	"INVIS"}
45
46/*
47 * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
48 */
49#define FI_NONE			0	/* none */
50#define FI_REMAPF		1	/* Do a remapf prior to the operation */
51#define FI_REMAPF_LOCKED	2	/* Do a remapf prior to the operation.
52					   Prevent VM access to the pages until
53					   the operation completes. */
54
55/*
56 * Some useful predicates.
57 */
58#define VN_MAPPED(vp)	mapping_mapped(vp->i_mapping)
59#define VN_CACHED(vp)	(vp->i_mapping->nrpages)
60#define VN_DIRTY(vp)	mapping_tagged(vp->i_mapping, \
61					PAGECACHE_TAG_DIRTY)
62
63
64#endif	/* __XFS_VNODE_H__ */

 1/*
 2 * Copyright (c) 2000-2005 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_VNODE_H__
19#define __XFS_VNODE_H__
20
21#include "xfs_fs.h"
22
23struct file;
24struct xfs_inode;
 
25struct attrlist_cursor_kern;
26
27/*
28 * Return values for xfs_inactive.  A return value of
29 * VN_INACTIVE_NOCACHE implies that the file system behavior
30 * has disassociated its state and bhv_desc_t from the vnode.
31 */
32#define	VN_INACTIVE_CACHE	0
33#define	VN_INACTIVE_NOCACHE	1
34
35/*
36 * Flags for read/write calls - same values as IRIX
37 */
38#define IO_ISDIRECT	0x00004		/* bypass page cache */
39#define IO_INVIS	0x00020		/* don't update inode timestamps */
40
41#define XFS_IO_FLAGS \
42	{ IO_ISDIRECT,	"DIRECT" }, \
43	{ IO_INVIS,	"INVIS"}
44
45/*
46 * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
47 */
48#define FI_NONE			0	/* none */
49#define FI_REMAPF		1	/* Do a remapf prior to the operation */
50#define FI_REMAPF_LOCKED	2	/* Do a remapf prior to the operation.
51					   Prevent VM access to the pages until
52					   the operation completes. */
53
54/*
55 * Some useful predicates.
56 */
57#define VN_MAPPED(vp)	mapping_mapped(vp->i_mapping)
58#define VN_CACHED(vp)	(vp->i_mapping->nrpages)
59#define VN_DIRTY(vp)	mapping_tagged(vp->i_mapping, \
60					PAGECACHE_TAG_DIRTY)
61
62
63#endif	/* __XFS_VNODE_H__ */