fs/xfs/xfs_dmops.c

   1 /*
   2  * Copyright (c) 2000-2003,2005 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_fs.h"
  20 #include "xfs_types.h"
  21 #include "xfs_log.h"
  22 #include "xfs_trans.h"
  23 #include "xfs_sb.h"
  24 #include "xfs_dmapi.h"
  25 #include "xfs_inum.h"
  26 #include "xfs_ag.h"
  27 #include "xfs_mount.h"
  28
  29
  30 static struct xfs_dmops xfs_dmcore_stub = {
  31         .xfs_send_data          = (xfs_send_data_t)fs_nosys,
  32         .xfs_send_mmap          = (xfs_send_mmap_t)fs_noerr,
  33         .xfs_send_destroy       = (xfs_send_destroy_t)fs_nosys,
  34         .xfs_send_namesp        = (xfs_send_namesp_t)fs_nosys,
  35         .xfs_send_mount         = (xfs_send_mount_t)fs_nosys,
  36         .xfs_send_unmount       = (xfs_send_unmount_t)fs_noerr,
  37 };
  38
  39 int
  40 xfs_dmops_get(struct xfs_mount *mp)
  41 {
  42         if (mp->m_flags & XFS_MOUNT_DMAPI) {
  43                 cmn_err(CE_WARN,
  44                         "XFS: dmapi support not available in this kernel.");
  45                 return EINVAL;
  46         }
  47
  48         mp->m_dm_ops = &xfs_dmcore_stub;
  49         return 0;
  50 }
  51
  52 void
  53 xfs_dmops_put(struct xfs_mount *mp)
  54 {
  55 }