Thread (29 messages) 29 messages, 6 authors, 2015-09-28

Re: [RFC PATCH v2 9/9] s390/s390x: allocate sys_membarrier system call number

From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: 2015-09-16 15:20:18
Also in: linux-s390, lkml

----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:
[ Untested on this architecture. To try it out: fetch linux-next/akpm,
 apply this patch, build/run a membarrier-enabled kernel, and do make
 kselftest. ]
Hi,

sys_membarrier has been merged into Linux 4.3-rc1. It can therefore
be tested on top of Linus' master by applying this patch.

Thanks,

Mathieu
quoted hunk ↗ jump to hunk
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: Martin Schwidefsky <redacted>
CC: Heiko Carstens <redacted>
CC: linux-s390@vger.kernel.org
---
arch/s390/include/uapi/asm/unistd.h | 3 ++-
arch/s390/kernel/syscalls.S         | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/s390/include/uapi/asm/unistd.h
b/arch/s390/include/uapi/asm/unistd.h
index 59d2bb4..2f1de70 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -290,7 +290,8 @@
#define __NR_s390_pci_mmio_write	352
#define __NR_s390_pci_mmio_read		353
#define __NR_execveat		354
-#define NR_syscalls 355
+#define __NR_membarrier		355
+#define NR_syscalls 356

/*
 * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index f3f4a13..914c098 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -363,3 +363,4 @@ SYSCALL(sys_bpf,compat_sys_bpf)
SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
SYSCALL(sys_execveat,compat_sys_execveat)
+SYSCALL(sys_membarrier,sys_membarrier)
--
1.9.1
-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
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