From c63cb468f373f479ff52b4a1b75f8ecdeaaf4f16 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 31 Jul 2012 15:37:13 +0200
Subject: s390/seccomp: add support for system call filtering using BPF

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/syscall.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch/s390/include/asm/syscall.h')

diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index fb214dd9b7e0..fe7b99759e12 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -12,6 +12,7 @@
 #ifndef _ASM_SYSCALL_H
 #define _ASM_SYSCALL_H	1
 
+#include <linux/audit.h>
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <asm/ptrace.h>
@@ -87,4 +88,13 @@ static inline void syscall_set_arguments(struct task_struct *task,
 		regs->orig_gpr2 = args[0];
 }
 
+static inline int syscall_get_arch(struct task_struct *task,
+				   struct pt_regs *regs)
+{
+#ifdef CONFIG_COMPAT
+	if (test_tsk_thread_flag(task, TIF_31BIT))
+		return AUDIT_ARCH_S390;
+#endif
+	return sizeof(long) == 8 ? AUDIT_ARCH_S390X : AUDIT_ARCH_S390;
+}
 #endif	/* _ASM_SYSCALL_H */
-- 
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