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 | |
2e656092 DC |
24 | /* |
25 | * note: all filemap functions return negative error codes. These | |
26 | * need to be inverted before returning to the xfs core functions. | |
27 | */ | |
1da177e4 | 28 | void |
993386c1 CH |
29 | xfs_tosspages( |
30 | xfs_inode_t *ip, | |
1da177e4 LT |
31 | xfs_off_t first, |
32 | xfs_off_t last, | |
33 | int fiopt) | |
34 | { | |
3ae4c9de DC |
35 | /* can't toss partial tail pages, so mask them out */ |
36 | last &= ~(PAGE_SIZE - 1); | |
37 | truncate_inode_pages_range(VFS_I(ip)->i_mapping, first, last - 1); | |
1da177e4 LT |
38 | } |
39 | ||
d3cf2094 | 40 | int |
993386c1 CH |
41 | xfs_flushinval_pages( |
42 | xfs_inode_t *ip, | |
1da177e4 LT |
43 | xfs_off_t first, |
44 | xfs_off_t last, | |
45 | int fiopt) | |
46 | { | |
01651646 | 47 | struct address_space *mapping = VFS_I(ip)->i_mapping; |
d3cf2094 | 48 | int ret = 0; |
1da177e4 | 49 | |
0b1b213f CH |
50 | trace_xfs_pagecache_inval(ip, first, last); |
51 | ||
3ae4c9de DC |
52 | xfs_iflags_clear(ip, XFS_ITRUNCATED); |
53 | ret = filemap_write_and_wait_range(mapping, first, | |
54 | last == -1 ? LLONG_MAX : last); | |
55 | if (!ret) | |
56 | truncate_inode_pages_range(mapping, first, last); | |
2e656092 | 57 | return -ret; |
1da177e4 LT |
58 | } |
59 | ||
1da177e4 | 60 | int |
993386c1 CH |
61 | xfs_flush_pages( |
62 | xfs_inode_t *ip, | |
1da177e4 LT |
63 | xfs_off_t first, |
64 | xfs_off_t last, | |
65 | uint64_t flags, | |
66 | int fiopt) | |
67 | { | |
01651646 | 68 | struct address_space *mapping = VFS_I(ip)->i_mapping; |
d3cf2094 LM |
69 | int ret = 0; |
70 | int ret2; | |
1da177e4 | 71 | |
3ae4c9de DC |
72 | xfs_iflags_clear(ip, XFS_ITRUNCATED); |
73 | ret = -filemap_fdatawrite_range(mapping, first, | |
74 | last == -1 ? LLONG_MAX : last); | |
0cadda1c | 75 | if (flags & XBF_ASYNC) |
a8d770d9 DC |
76 | return ret; |
77 | ret2 = xfs_wait_on_pages(ip, first, last); | |
78 | if (!ret) | |
79 | ret = ret2; | |
80 | return ret; | |
2e656092 DC |
81 | } |
82 | ||
83 | int | |
84 | xfs_wait_on_pages( | |
85 | xfs_inode_t *ip, | |
86 | xfs_off_t first, | |
87 | xfs_off_t last) | |
88 | { | |
89 | struct address_space *mapping = VFS_I(ip)->i_mapping; | |
90 | ||
3ae4c9de DC |
91 | if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK)) { |
92 | return -filemap_fdatawait_range(mapping, first, | |
93 | last == -1 ? ip->i_size - 1 : last); | |
94 | } | |
2e656092 | 95 | return 0; |
1da177e4 | 96 | } |