mount options: fix isofs

Add a .show_options super operation to isofs.

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

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index c3240b42ebf5..044a254d526b 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -110,6 +110,7 @@ static const struct super_operations isofs_sops = {
         .put_super      = isofs_put_super,
         .statfs         = isofs_statfs,
         .remount_fs     = isofs_remount,
+        .show_options   = generic_show_options,
 };
 
 
@@ -561,6 +562,8 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
         int table, error = -EINVAL;
         unsigned int vol_desc_start;
 
+        save_mount_options(s, data);
+
         sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
         if (!sbi)
                 return -ENOMEM;