/*
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_types.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_dmapi.h"
#include "xfs_inum.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
#include "xfs_clnt.h"
static struct xfs_dmops xfs_dmcore_stub = {
.xfs_send_data = (xfs_send_data_t)fs_nosys,
.xfs_send_mmap = (xfs_send_mmap_t)fs_noerr,
.xfs_send_destroy = (xfs_send_destroy_t)fs_nosys,
.xfs_send_namesp = (xfs_send_namesp_t)fs_nosys,
.xfs_send_mount = (xfs_send_mount_t)fs_nosys,
.xfs_send_unmount = (xfs_send_unmount_t)fs_noerr,
};
int
xfs_dmops_get(struct xfs_mount *mp, struct xfs_mount_args *args)
{
if (args->flags & XFSMNT_DMAPI) {
struct xfs_dmops *ops;
ops = symbol_get(xfs_dmcore_xfs);
if (!ops) {
request_module("xfs_dmapi");
ops = symbol_get(xfs_dmcore_xfs);
}
if (!ops) {
cmn_err(CE_WARN, "XFS: no dmapi support available.");
return EINVAL;
}
mp->m_dm_ops = ops;
} else {
mp->m_dm_ops = &xfs_dmcore_stub;
}
return 0;
}
void
xfs_dmops_put(struct xfs_mount *mp)
{
if (mp->m_dm_ops != &xfs_dmcore_stub)
symbol_put(xfs_dmcore_xfs);
}
