Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
7d4fb40a | 2 | * Copyright (c) 2000-2002,2005-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
993386c1 | 19 | #include "xfs_vnodeops.h" |
993386c1 | 20 | #include "xfs_bmap_btree.h" |
993386c1 | 21 | #include "xfs_inode.h" |
0b1b213f | 22 | #include "xfs_trace.h" |
1da177e4 | 23 | |
7d4fb40a NS |
24 | int fs_noerr(void) { return 0; } |
25 | int fs_nosys(void) { return ENOSYS; } | |
26 | void fs_noval(void) { return; } | |
1da177e4 | 27 | |
2e656092 DC |
28 | /* |
29 | * note: all filemap functions return negative error codes. These | |
30 | * need to be inverted before returning to the xfs core functions. | |
31 | */ | |
1da177e4 | 32 | void |
993386c1 CH |
33 | xfs_tosspages( |
34 | xfs_inode_t *ip, | |
1da177e4 LT |
35 | xfs_off_t first, |
36 | xfs_off_t last, | |
37 | int fiopt) | |
38 | { | |
01651646 | 39 | struct address_space *mapping = VFS_I(ip)->i_mapping; |
1da177e4 | 40 | |
a8b3acd5 CH |
41 | if (mapping->nrpages) |
42 | truncate_inode_pages(mapping, first); | |
1da177e4 LT |
43 | } |
44 | ||
d3cf2094 | 45 | int |
993386c1 CH |
46 | xfs_flushinval_pages( |
47 | xfs_inode_t *ip, | |
1da177e4 LT |
48 | xfs_off_t first, |
49 | xfs_off_t last, | |
50 | int fiopt) | |
51 | { | |
01651646 | 52 | struct address_space *mapping = VFS_I(ip)->i_mapping; |
d3cf2094 | 53 | int ret = 0; |
1da177e4 | 54 | |
0b1b213f CH |
55 | trace_xfs_pagecache_inval(ip, first, last); |
56 | ||
a8b3acd5 | 57 | if (mapping->nrpages) { |
b3aea4ed | 58 | xfs_iflags_clear(ip, XFS_ITRUNCATED); |
a8b3acd5 | 59 | ret = filemap_write_and_wait(mapping); |
d3cf2094 | 60 | if (!ret) |
a8b3acd5 | 61 | truncate_inode_pages(mapping, first); |
1da177e4 | 62 | } |
2e656092 | 63 | return -ret; |
1da177e4 LT |
64 | } |
65 | ||
1da177e4 | 66 | int |
993386c1 CH |
67 | xfs_flush_pages( |
68 | xfs_inode_t *ip, | |
1da177e4 LT |
69 | xfs_off_t first, |
70 | xfs_off_t last, | |
71 | uint64_t flags, | |
72 | int fiopt) | |
73 | { | |
01651646 | 74 | struct address_space *mapping = VFS_I(ip)->i_mapping; |
d3cf2094 LM |
75 | int ret = 0; |
76 | int ret2; | |
1da177e4 | 77 | |
a8b3acd5 | 78 | if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { |
b3aea4ed | 79 | xfs_iflags_clear(ip, XFS_ITRUNCATED); |
a8d770d9 | 80 | ret = -filemap_fdatawrite(mapping); |
1da177e4 | 81 | } |
a8d770d9 DC |
82 | if (flags & XFS_B_ASYNC) |
83 | return ret; | |
84 | ret2 = xfs_wait_on_pages(ip, first, last); | |
85 | if (!ret) | |
86 | ret = ret2; | |
87 | return ret; | |
2e656092 DC |
88 | } |
89 | ||
90 | int | |
91 | xfs_wait_on_pages( | |
92 | xfs_inode_t *ip, | |
93 | xfs_off_t first, | |
94 | xfs_off_t last) | |
95 | { | |
96 | struct address_space *mapping = VFS_I(ip)->i_mapping; | |
97 | ||
98 | if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK)) | |
99 | return -filemap_fdatawait(mapping); | |
100 | return 0; | |
1da177e4 | 101 | } |