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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18#ifndef __XFS_VNODE_H__
19#define __XFS_VNODE_H__
20
Christoph Hellwig2b5decd2008-11-28 14:23:36 +110021#include "xfs_fs.h"
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023struct file;
Christoph Hellwig2b5decd2008-11-28 14:23:36 +110024struct xfs_inode;
Linus Torvalds1da177e2005-04-16 15:20:36 -070025struct attrlist_cursor_kern;
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027/*
Christoph Hellwig739bfb22007-08-29 10:58:01 +100028 * Return values for xfs_inactive. A return value of
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 * 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/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 * Flags for read/write calls - same values as IRIX
37 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#define IO_ISDIRECT 0x00004 /* bypass page cache */
39#define IO_INVIS 0x00020 /* don't update inode timestamps */
40
Christoph Hellwig0b1b2132009-12-14 23:14:59 +000041#define XFS_IO_FLAGS \
42 { IO_ISDIRECT, "DIRECT" }, \
43 { IO_INVIS, "INVIS"}
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045/*
Nathan Scott67fcaa72006-06-09 17:00:52 +100046 * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 */
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070054/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 * Some useful predicates.
56 */
Christoph Hellwig863890c2008-08-13 16:12:05 +100057#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, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 PAGECACHE_TAG_DIRTY)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#endif /* __XFS_VNODE_H__ */