diff options
author | Steve French <stfrench@microsoft.com> | 2023-05-21 20:46:30 -0500 |
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committer | Steve French <stfrench@microsoft.com> | 2023-05-24 16:29:21 -0500 |
commit | 38c8a9a52082579090e34c033d439ed2cd1a462d (patch) | |
tree | ca6c3bf5b2b912f32735c1aa0a045cd21a47a205 /fs/smb/client/export.c | |
parent | cb8b02fd6343228966324528adf920bfb8b8e681 (diff) |
smb: move client and server files to common directory fs/smb
Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:
fs/cifs --> fs/smb/client
fs/ksmbd --> fs/smb/server
fs/smbfs_common --> fs/smb/common
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/export.c')
-rw-r--r-- | fs/smb/client/export.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/smb/client/export.c b/fs/smb/client/export.c new file mode 100644 index 000000000000..37c28415df1e --- /dev/null +++ b/fs/smb/client/export.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: LGPL-2.1 +/* + * + * Copyright (C) International Business Machines Corp., 2007 + * Author(s): Steve French (sfrench@us.ibm.com) + * + * Common Internet FileSystem (CIFS) client + * + * Operations related to support for exporting files via NFSD + * + */ + + /* + * See Documentation/filesystems/nfs/exporting.rst + * and examples in fs/exportfs + * + * Since cifs is a network file system, an "fsid" must be included for + * any nfs exports file entries which refer to cifs paths. In addition + * the cifs mount must be mounted with the "serverino" option (ie use stable + * server inode numbers instead of locally generated temporary ones). + * Although cifs inodes do not use generation numbers (have generation number + * of zero) - the inode number alone should be good enough for simple cases + * in which users want to export cifs shares with NFS. The decode and encode + * could be improved by using a new routine which expects 64 bit inode numbers + * instead of the default 32 bit routines in fs/exportfs + * + */ + +#include <linux/fs.h> +#include <linux/exportfs.h> +#include "cifsglob.h" +#include "cifs_debug.h" +#include "cifsfs.h" + +#ifdef CONFIG_CIFS_NFSD_EXPORT +static struct dentry *cifs_get_parent(struct dentry *dentry) +{ + /* BB need to add code here eventually to enable export via NFSD */ + cifs_dbg(FYI, "get parent for %p\n", dentry); + return ERR_PTR(-EACCES); +} + +const struct export_operations cifs_export_ops = { + .get_parent = cifs_get_parent, +/* Following five export operations are unneeded so far and can default: + .get_dentry = + .get_name = + .find_exported_dentry = + .decode_fh = + .encode_fs = */ +}; + +#endif /* CONFIG_CIFS_NFSD_EXPORT */ + |