1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #ifndef LUSTRE_PATCHLESS_COMPAT_H
24 #define LUSTRE_PATCHLESS_COMPAT_H
26 #include <linux/lustre_version.h>
29 #ifndef HAVE_TRUNCATE_COMPLETE_PAGE
30 #include <linux/list.h>
32 #include <linux/hash.h>
34 /* XXX copy & paste from 2.6.15 kernel */
35 static inline void ll_remove_from_page_cache(struct page *page)
37 struct address_space *mapping = page->mapping;
39 BUG_ON(!PageLocked(page));
41 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
42 write_lock_irq(&mapping->tree_lock);
44 spin_lock_irq(&mapping->tree_lock);
46 radix_tree_delete(&mapping->page_tree, page->index);
49 #ifdef HAVE_NR_PAGECACHE
50 atomic_add(-1, &nr_pagecache); // XXX pagecache_acct(-1);
52 __dec_zone_page_state(page, NR_FILE_PAGES);
55 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
56 write_unlock_irq(&mapping->tree_lock);
58 spin_unlock_irq(&mapping->tree_lock);
63 truncate_complete_page(struct address_space *mapping, struct page *page)
65 if (page->mapping != mapping)
68 if (PagePrivate(page))
69 page->mapping->a_ops->invalidatepage(page, 0);
71 #ifdef HAVE_CANCEL_DIRTY_PAGE
72 cancel_dirty_page(page, PAGE_SIZE);
74 clear_page_dirty(page);
76 ClearPageUptodate(page);
77 ClearPageMappedToDisk(page);
78 ll_remove_from_page_cache(page);
79 page_cache_release(page); /* pagecache ref */
81 #endif /* HAVE_TRUNCATE_COMPLETE_PAGE */
83 #if !defined(HAVE_D_REHASH_COND) && !defined(HAVE___D_REHASH)
85 static inline void d_rehash_cond(struct dentry * entry, int lock)
88 spin_unlock(&dcache_lock);
93 spin_lock(&dcache_lock);
96 #define __d_rehash(dentry, lock) d_rehash_cond(dentry, lock)
97 #endif /* !HAVE_D_REHASH_COND && !HAVE___D_REHASH*/
100 # define ATTR_FROM_OPEN ATTR_OPEN
102 # ifndef ATTR_FROM_OPEN
103 # define ATTR_FROM_OPEN 0
105 #endif /* ATTR_OPEN */
111 #ifndef ATTR_CTIME_SET
113 * set ATTR_CTIME_SET to a high value to avoid any risk of collision with other
114 * ATTR_* attributes (see bug 13828)
116 #define ATTR_CTIME_SET (1 << 28)
119 #endif /* LUSTRE_PATCHLESS_COMPAT_H */