From: Miklos Szeredi <mszeredi@suse.cz>

Add a .show_options super operation to autofs.

Use generic_show_options() and save the complete option string in
autofs_fill_super().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/autofs/inode.c |    3 +++
 1 file changed, 3 insertions(+)

diff -puN fs/autofs/inode.c~mount-options-fix-autofs fs/autofs/inode.c
--- a/fs/autofs/inode.c~mount-options-fix-autofs
+++ a/fs/autofs/inode.c
@@ -54,6 +54,7 @@ out_kill_sb:
 
 static const struct super_operations autofs_sops = {
 	.statfs		= simple_statfs,
+	.show_options	= generic_show_options,
 };
 
 enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto};
@@ -140,6 +141,8 @@ int autofs_fill_super(struct super_block
 	int minproto, maxproto;
 	pid_t pgid;
 
+	save_mount_options(s, data);
+
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi)
 		goto fail_unlock;
_