1 /*
2 * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
22 *
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
25 *
26 * http://www.sgi.com
27 *
28 * For further information regarding this notice, see:
29 *
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
31 */
32
33 #include "xfs.h"
34
35 /*
36 * Stub for no-op vnode operations that return error status.
37 */
38 int
fs_noerr(void)39 fs_noerr(void)
40 {
41 return 0;
42 }
43
44 /*
45 * Operation unsupported under this file system.
46 */
47 int
fs_nosys(void)48 fs_nosys(void)
49 {
50 return ENOSYS;
51 }
52
53 /*
54 * Stub for inactive, strategy, and read/write lock/unlock. Does nothing.
55 */
56 /* ARGSUSED */
57 void
fs_noval(void)58 fs_noval(void)
59 {
60 }
61
62 /*
63 * vnode pcache layer for vnode_tosspages.
64 * 'last' parameter unused but left in for IRIX compatibility
65 */
66 void
fs_tosspages(bhv_desc_t * bdp,xfs_off_t first,xfs_off_t last,int fiopt)67 fs_tosspages(
68 bhv_desc_t *bdp,
69 xfs_off_t first,
70 xfs_off_t last,
71 int fiopt)
72 {
73 vnode_t *vp = BHV_TO_VNODE(bdp);
74 struct inode *ip = LINVFS_GET_IP(vp);
75
76 if (VN_CACHED(vp))
77 truncate_inode_pages(ip->i_mapping, first);
78 }
79
80
81 /*
82 * vnode pcache layer for vnode_flushinval_pages.
83 * 'last' parameter unused but left in for IRIX compatibility
84 */
85 void
fs_flushinval_pages(bhv_desc_t * bdp,xfs_off_t first,xfs_off_t last,int fiopt)86 fs_flushinval_pages(
87 bhv_desc_t *bdp,
88 xfs_off_t first,
89 xfs_off_t last,
90 int fiopt)
91 {
92 vnode_t *vp = BHV_TO_VNODE(bdp);
93 struct inode *ip = LINVFS_GET_IP(vp);
94
95 if (VN_CACHED(vp)) {
96 filemap_fdatasync(ip->i_mapping);
97 fsync_inode_data_buffers(ip);
98 filemap_fdatawait(ip->i_mapping);
99
100 truncate_inode_pages(ip->i_mapping, first);
101 }
102 }
103
104 /*
105 * vnode pcache layer for vnode_flush_pages.
106 * 'last' parameter unused but left in for IRIX compatibility
107 */
108 int
fs_flush_pages(bhv_desc_t * bdp,xfs_off_t first,xfs_off_t last,uint64_t flags,int fiopt)109 fs_flush_pages(
110 bhv_desc_t *bdp,
111 xfs_off_t first,
112 xfs_off_t last,
113 uint64_t flags,
114 int fiopt)
115 {
116 vnode_t *vp = BHV_TO_VNODE(bdp);
117 struct inode *ip = LINVFS_GET_IP(vp);
118
119 if (VN_CACHED(vp)) {
120 filemap_fdatasync(ip->i_mapping);
121 fsync_inode_data_buffers(ip);
122 filemap_fdatawait(ip->i_mapping);
123 }
124
125 return 0;
126 }
127