From: Eric W. Biederman <ebiederm@xmission.com>

And make the mode of the kernel directory 0555 no one is allowed to write to
sysctl directories.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 arch/ppc/kernel/ppc_htab.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff -puN arch/ppc/kernel/ppc_htab.c~sysctl-c99-convert-ctl_tables-entries-in-arch-ppc-kernel-ppc_htabc arch/ppc/kernel/ppc_htab.c
--- a/arch/ppc/kernel/ppc_htab.c~sysctl-c99-convert-ctl_tables-entries-in-arch-ppc-kernel-ppc_htabc
+++ a/arch/ppc/kernel/ppc_htab.c
@@ -442,11 +442,16 @@ static ctl_table htab_ctl_table[]={
 		.mode		= 0644,
 		.proc_handler	= &proc_dol2crvec,
 	},
-	{ 0, },
+	{}
 };
 static ctl_table htab_sysctl_root[] = {
-	{ 1, "kernel", NULL, 0, 0755, htab_ctl_table, },
- 	{ 0,},
+	{
+		.ctl_name	= CTL_KERN,
+		.procname	= "kernel",
+		.mode		= 0555,
+		.child		= htab_ctl_table,
+	},
+	{}
 };
 
 static int __init
_