linux-kernel - [PATCH 7/7] revoke: wire up s390 system calls

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Date:	Fri, 9 Mar 2007 10:16:56 +0200 (EET)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	akpm@...ux-foundation.org
cc:	linux-kernel@...r.kernel.org, hch@...radead.org,
	alan@...rguk.ukuu.org.uk, serue@...ibm.com
Subject: [PATCH 7/7] revoke: wire up s390 system calls

From: Serge E. Hallyn <serue@...ibm.com>

Make revokeat and frevoke system calls available to user-space on s390.

Signed-off-by: Serge E. Hallyn <serue@...ibm.com>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
 arch/s390/kernel/compat_wrapper.S |   11 +++++++++++
 arch/s390/kernel/syscalls.S       |    2 ++
 include/asm-s390/unistd.h         |    4 +++-
 3 files changed, 16 insertions(+), 1 deletion(-)

Index: uml-2.6/arch/s390/kernel/compat_wrapper.S
===================================================================
--- uml-2.6.orig/arch/s390/kernel/compat_wrapper.S	2007-03-08 10:24:23.000000000 +0200
+++ uml-2.6/arch/s390/kernel/compat_wrapper.S	2007-03-08 10:24:34.000000000 +0200
@@ -1665,3 +1665,14 @@
 	llgtr	%r3,%r3			# unsigned *
 	llgtr	%r4,%r4			# struct getcpu_cache *
 	jg	sys_getcpu
+
+	.globl sys_revokeat_wrapper
+sys_revokeat_wrapper:
+	lgfr	%r2,%r2			# int
+	llgtr	%r3,%r3			# const char *
+	jg	sys_revokeat
+
+	.globl sys_frevoke_wrapper
+sys_frevoke_wrapper:
+	llgfr	%r2,%r2			# unsigned int
+	jg	sys_frevoke
Index: uml-2.6/arch/s390/kernel/syscalls.S
===================================================================
--- uml-2.6.orig/arch/s390/kernel/syscalls.S	2007-03-08 10:24:23.000000000 +0200
+++ uml-2.6/arch/s390/kernel/syscalls.S	2007-03-08 10:24:34.000000000 +0200
@@ -321,3 +321,5 @@
 NI_SYSCALL							/* 310 sys_move_pages */
 SYSCALL(sys_getcpu,sys_getcpu,sys_getcpu_wrapper)
 SYSCALL(sys_epoll_pwait,sys_epoll_pwait,sys_ni_syscall)
+SYSCALL(sys_revokeat,sys_revokeat,sys_revokeat_wrapper)
+SYSCALL(sys_frevoke,sys_frevoke,sys_frevoke_wrapper)
Index: uml-2.6/include/asm-s390/unistd.h
===================================================================
--- uml-2.6.orig/include/asm-s390/unistd.h	2007-03-08 10:24:23.000000000 +0200
+++ uml-2.6/include/asm-s390/unistd.h	2007-03-08 10:24:34.000000000 +0200
@@ -250,8 +250,10 @@
 /* Number 310 is reserved for new sys_move_pages */
 #define __NR_getcpu		311
 #define __NR_epoll_pwait	312
+#define __NR_revokeat		313
+#define __NR_frevoke		314
 
-#define NR_syscalls 313
+#define NR_syscalls 315
 
 /* 
  * There are some system calls that are not present on 64 bit, some
-
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