mirror of https://gitee.com/openkylin/linux.git
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/*
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* fs/cifs/export.c
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*
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* Copyright (C) International Business Machines Corp., 2007
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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* Common Internet FileSystem (CIFS) client
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*
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* Operations related to support for exporting files via NFSD
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will 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
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* the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* See Documentation/filesystems/Exporting
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* and examples in fs/exportfs
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*
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* Since cifs is a network file system, an "fsid" must be included for
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* any nfs exports file entries which refer to cifs paths. In addition
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* the cifs mount must be mounted with the "serverino" option (ie use stable
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* server inode numbers instead of locally generated temporary ones).
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* Although cifs inodes do not use generation numbers (have generation number
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* of zero) - the inode number alone should be good enough for simple cases
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* in which users want to export cifs shares with NFS. The decode and encode
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* could be improved by using a new routine which expects 64 bit inode numbers
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* instead of the default 32 bit routines in fs/exportfs
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*
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*/
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#include <linux/fs.h>
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#include <linux/exportfs.h>
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#include "cifsglob.h"
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#include "cifs_debug.h"
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#ifdef CONFIG_CIFS_EXPERIMENTAL
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static struct dentry *cifs_get_parent(struct dentry *dentry)
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{
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/* BB need to add code here eventually to enable export via NFSD */
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cFYI(1, ("get parent for %p", dentry));
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return ERR_PTR(-EACCES);
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}
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struct export_operations cifs_export_ops = {
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.get_parent = cifs_get_parent,
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/* Following five export operations are unneeded so far and can default:
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.get_dentry =
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.get_name =
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.find_exported_dentry =
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.decode_fh =
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.encode_fs = */
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};
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#endif /* EXPERIMENTAL */
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