lockd: simplify two-level sysctl registration for nlm_sysctls

There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().

Simplify this registration.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>

fs/lockd/svc.c

@@ -510,24 +510,6 @@ static struct ctl_table nlm_sysctls[] = {
 	{ }
 };
 
-static struct ctl_table nlm_sysctl_dir[] = {
-	{
-		.procname	= "nfs",
-		.mode		= 0555,
-		.child		= nlm_sysctls,
-	},
-	{ }
-};
-
-static struct ctl_table nlm_sysctl_root[] = {
-	{
-		.procname	= "fs",
-		.mode		= 0555,
-		.child		= nlm_sysctl_dir,
-	},
-	{ }
-};
-
 #endif	/* CONFIG_SYSCTL */
 
 /*
@@ -644,7 +626,7 @@ static int __init init_nlm(void)
 
 #ifdef CONFIG_SYSCTL
 	err = -ENOMEM;
-	nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root);
+	nlm_sysctl_table = register_sysctl("fs/nfs", nlm_sysctls);
 	if (nlm_sysctl_table == NULL)
 		goto err_sysctl;
 #endif