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
23 struct file;
24 struct xfs_inode;
25 struct xfs_iomap;
26 struct 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_ISAIO 0x00001 /* don't wait for completion */
40 #define IO_ISDIRECT 0x00004 /* bypass page cache */
41 #define IO_INVIS 0x00020 /* don't update inode timestamps */
42
43 /*
44 * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
45 */
46 #define FI_NONE 0 /* none */
47 #define FI_REMAPF 1 /* Do a remapf prior to the operation */
48 #define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation.
49 Prevent VM access to the pages until
50 the operation completes. */
51
52 /*
53 * Some useful predicates.
54 */
55 #define VN_MAPPED(vp) mapping_mapped(vp->i_mapping)
56 #define VN_CACHED(vp) (vp->i_mapping->nrpages)
57 #define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \
58 PAGECACHE_TAG_DIRTY)
59
60
61 #endif /* __XFS_VNODE_H__ */
62
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