drivers/staging/lustre/lustre/include/linux/lustre_patchless_compat.h

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  *
  20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  21  * CA 95054 USA or visit www.sun.com if you need additional information or
  22  * have any questions.
  23  *
  24  * GPL HEADER END
  25  */
  26 /*
  27  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Use is subject to license terms.
  29  *
  30  * Copyright (c) 2011, 2012, Intel Corporation.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  */
  36
  37 #ifndef LUSTRE_PATCHLESS_COMPAT_H
  38 #define LUSTRE_PATCHLESS_COMPAT_H
  39
  40 #include <linux/fs.h>
  41
  42 #include <linux/list.h>
  43 #include <linux/mm.h>
  44 #include <linux/hash.h>
  45
  46 #define ll_delete_from_page_cache(page) delete_from_page_cache(page)
  47
  48 static inline void
  49 truncate_complete_page(struct address_space *mapping, struct page *page)
  50 {
  51         if (page->mapping != mapping)
  52                 return;
  53
  54         if (PagePrivate(page))
  55                 page->mapping->a_ops->invalidatepage(page, 0, PAGE_CACHE_SIZE);
  56
  57         cancel_dirty_page(page);
  58         ClearPageMappedToDisk(page);
  59         ll_delete_from_page_cache(page);
  60 }
  61
  62 #ifndef ATTR_CTIME_SET
  63 /*
  64  * set ATTR_CTIME_SET to a high value to avoid any risk of collision with other
  65  * ATTR_* attributes (see bug 13828)
  66  */
  67 #define ATTR_CTIME_SET (1 << 28)
  68 #endif
  69
  70 #endif /* LUSTRE_PATCHLESS_COMPAT_H */