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