From: Miklos Szeredi <mszeredi@suse.cz>

Add a .show_options super operation to hugetlbfs.

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

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Adam Litke <agl@us.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Ken Chen <kenchen@google.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

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

diff -puN fs/hugetlbfs/inode.c~mount-options-fix-hugetlbfs fs/hugetlbfs/inode.c
--- a/fs/hugetlbfs/inode.c~mount-options-fix-hugetlbfs
+++ a/fs/hugetlbfs/inode.c
@@ -734,6 +734,7 @@ static const struct super_operations hug
 	.delete_inode	= hugetlbfs_delete_inode,
 	.drop_inode	= hugetlbfs_drop_inode,
 	.put_super	= hugetlbfs_put_super,
+	.show_options	= generic_show_options,
 };
 
 static int
@@ -817,6 +818,8 @@ hugetlbfs_fill_super(struct super_block 
 	struct hugetlbfs_config config;
 	struct hugetlbfs_sb_info *sbinfo;
 
+	save_mount_options(sb, data);
+
 	config.nr_blocks = -1; /* No limit on size by default */
 	config.nr_inodes = -1; /* No limit on number of inodes by default */
 	config.uid = current->fsuid;
_