From 162e006ef59266b9ebf34e3d15ca1f3d9ee956d7 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 5 Feb 2007 21:18:41 +0100
Subject: [S390] Mark kernel text section read-only.

Set read-only flag in the page table entries for the kernel image text
section. This will catch all instruction caused corruptions withing the
text section.
Instruction replacement via kprobes still works, since it bypasses now
dynamic address translation.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 include/asm-s390/sections.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/asm-s390/sections.h')

diff --git a/include/asm-s390/sections.h b/include/asm-s390/sections.h
index 3a0b8ffeab7a..1c5a2c4ccdad 100644
--- a/include/asm-s390/sections.h
+++ b/include/asm-s390/sections.h
@@ -3,4 +3,6 @@
 
 #include <asm-generic/sections.h>
 
+extern char _eshared[];
+
 #endif
-- 
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