mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 16:24:13 +08:00
293688ec42
Mount options are now parsed by the main XFS module and rejected if dmapi support is not available, and there is a new dm operation to send the mount event. SGI-PV: 969608 SGI-Modid: xfs-linux-melb:xfs-kern:29502a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
|
|
* 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);
|
|
}
|