fs/ocfs2/aops.h

   1 /* -*- mode: c; c-basic-offset: 8; -*-
   2  * vim: noexpandtab sw=8 ts=8 sts=0:
   3  *
   4  * Copyright (C) 2002, 2004, 2005 Oracle.  All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 021110-1307, USA.
  20  */
  21
  22 #ifndef OCFS2_AOPS_H
  23 #define OCFS2_AOPS_H
  24
  25 int ocfs2_prepare_write(struct file *file, struct page *page,
  26                         unsigned from, unsigned to);
  27
  28 struct ocfs2_journal_handle *ocfs2_start_walk_page_trans(struct inode *inode,
  29                                                          struct page *page,
  30                                                          unsigned from,
  31                                                          unsigned to);
  32
  33 /* all ocfs2_dio_end_io()'s fault */
  34 #define ocfs2_iocb_is_rw_locked(iocb) \
  35         test_bit(0, (unsigned long *)&iocb->private)
  36 #define ocfs2_iocb_set_rw_locked(iocb) \
  37         set_bit(0, (unsigned long *)&iocb->private)
  38 #define ocfs2_iocb_clear_rw_locked(iocb) \
  39         clear_bit(0, (unsigned long *)&iocb->private)
  40
  41 #endif /* OCFS2_FILE_H */