tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 2000-2002,2005-2006 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
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
7 * published by the Free Software Foundation.
8 *
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.
13 *
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
17 */
18#include "xfs.h"
19#include "xfs_vnodeops.h"
20#include "xfs_bmap_btree.h"
21#include "xfs_inode.h"
22
23int fs_noerr(void) { return 0; }
24int fs_nosys(void) { return ENOSYS; }
25void fs_noval(void) { return; }
26
27void
28xfs_tosspages(
29 xfs_inode_t *ip,
30 xfs_off_t first,
31 xfs_off_t last,
32 int fiopt)
33{
34 struct address_space *mapping = ip->i_vnode->i_mapping;
35
36 if (mapping->nrpages)
37 truncate_inode_pages(mapping, first);
38}
39
40int
41xfs_flushinval_pages(
42 xfs_inode_t *ip,
43 xfs_off_t first,
44 xfs_off_t last,
45 int fiopt)
46{
47 struct address_space *mapping = ip->i_vnode->i_mapping;
48 int ret = 0;
49
50 if (mapping->nrpages) {
51 xfs_iflags_clear(ip, XFS_ITRUNCATED);
52 ret = filemap_write_and_wait(mapping);
53 if (!ret)
54 truncate_inode_pages(mapping, first);
55 }
56 return ret;
57}
58
59int
60xfs_flush_pages(
61 xfs_inode_t *ip,
62 xfs_off_t first,
63 xfs_off_t last,
64 uint64_t flags,
65 int fiopt)
66{
67 struct address_space *mapping = ip->i_vnode->i_mapping;
68 int ret = 0;
69 int ret2;
70
71 if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
72 xfs_iflags_clear(ip, XFS_ITRUNCATED);
73 ret = filemap_fdatawrite(mapping);
74 if (flags & XFS_B_ASYNC)
75 return ret;
76 ret2 = filemap_fdatawait(mapping);
77 if (!ret)
78 ret = ret2;
79 }
80 return ret;
81}