[S390] hypfs: implement show_options

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 8e1ea1c4012846a8a8d2f31f45f289ceabf39e6f..ad4ca75c0f044dd66b7fdbbfc502f5cd4d0a7adb 100644 (file)
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -17,6 +17,8 @@
 #include <linux/parser.h>
 #include <linux/sysfs.h>
 #include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/mount.h>
 #include <asm/ebcdic.h>
 #include "hypfs.h"
 
@@ -256,6 +258,15 @@ static int hypfs_parse_options(char *options, struct super_block *sb)
        return 0;
 }
 
+static int hypfs_show_options(struct seq_file *s, struct vfsmount *mnt)
+{
+       struct hypfs_sb_info *hypfs_info = mnt->mnt_sb->s_fs_info;
+
+       seq_printf(s, ",uid=%u", hypfs_info->uid);
+       seq_printf(s, ",gid=%u", hypfs_info->gid);
+       return 0;
+}
+
 static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 {
        struct inode *root_inode;
@@ -459,6 +470,7 @@ static struct file_system_type hypfs_type = {
 static struct super_operations hypfs_s_ops = {
        .statfs         = simple_statfs,
        .drop_inode     = hypfs_drop_inode,
+       .show_options   = hypfs_show_options,
 };
 
 static decl_subsys(s390, NULL, NULL);