[patch 09/26] mount options: fix capifs

[Miklos Szeredi]

From: Miklos Szeredi <mszeredi@xxxxxxx>

Add a .show_options super operation to capifs.

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

Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx>
---

Index: linux/drivers/isdn/capi/capifs.c
===================================================================
--- linux.orig/drivers/isdn/capi/capifs.c	2007-10-09 22:31:38.000000000 +0200
+++ linux/drivers/isdn/capi/capifs.c	2008-01-24 11:37:42.000000000 +0100
@@ -52,6 +52,7 @@ static int capifs_remount(struct super_b
 	gid_t gid = 0;
 	umode_t mode = 0600;
 	char *this_char;
+	char *new_opt = kstrdup(data, GFP_KERNEL);
 
 	this_char = NULL;
 	while ((this_char = strsep(&data, ",")) != NULL) {
@@ -72,11 +73,16 @@ static int capifs_remount(struct super_b
 			return -EINVAL;
 		}
 	}
+
+	kfree(s->s_options);
+	s->s_options = new_opt;
+
 	config.setuid  = setuid;
 	config.setgid  = setgid;
 	config.uid     = uid;
 	config.gid     = gid;
 	config.mode    = mode;
+
 	return 0;
 }
 
@@ -84,6 +90,7 @@ static struct super_operations capifs_so
 {
 	.statfs		= simple_statfs,
 	.remount_fs	= capifs_remount,
+	.show_options	= generic_show_options,
 };
 
 

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