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1da177e4 LT |
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 | |
39 | fs_noerr(void) | |
40 | { | |
41 | return 0; | |
42 | } | |
43 | ||
44 | /* | |
45 | * Operation unsupported under this file system. | |
46 | */ | |
47 | int | |
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 | |
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 | |
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 | |
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_fdatawrite(ip->i_mapping); | |
97 | filemap_fdatawait(ip->i_mapping); | |
98 | ||
99 | truncate_inode_pages(ip->i_mapping, first); | |
100 | } | |
101 | } | |
102 | ||
103 | /* | |
104 | * vnode pcache layer for vnode_flush_pages. | |
105 | * 'last' parameter unused but left in for IRIX compatibility | |
106 | */ | |
107 | int | |
108 | fs_flush_pages( | |
109 | bhv_desc_t *bdp, | |
110 | xfs_off_t first, | |
111 | xfs_off_t last, | |
112 | uint64_t flags, | |
113 | int fiopt) | |
114 | { | |
115 | vnode_t *vp = BHV_TO_VNODE(bdp); | |
116 | struct inode *ip = LINVFS_GET_IP(vp); | |
117 | ||
118 | if (VN_CACHED(vp)) { | |
119 | filemap_fdatawrite(ip->i_mapping); | |
120 | filemap_fdatawait(ip->i_mapping); | |
121 | } | |
122 | ||
123 | return 0; | |
124 | } |