include/linux/xattr_compat.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (C) 2011 Lawrence Livermore National Security, LLC.
  24  */
  25
  26 #ifndef _ZFS_XATTR_H
  27 #define _ZFS_XATTR_H
  28
  29 /*
  30  * 2.6.35 API change,
  31  * The const keyword was added to the 'struct xattr_handler' in the
  32  * generic Linux super_block structure.  To handle this we define an
  33  * appropriate xattr_handler_t typedef which can be used.  This was
  34  * the preferred solution because it keeps the code clean and readable.
  35  */
  36 #ifdef HAVE_CONST_XATTR_HANDLER
  37 typedef const struct xattr_handler      xattr_handler_t;
  38 #else
  39 typedef struct xattr_handler            xattr_handler_t;
  40 #endif
  41
  42 #endif /* _ZFS_XATTR_H */