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Groups > linux.kernel > #1214789

[RFC PATCH v2] alpha: allocate sys_membarrier system call number

From Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Newsgroups linux.kernel
Subject [RFC PATCH v2] alpha: allocate sys_membarrier system call number
Date 2015-08-27 21:10 +0200
Message-ID <q2aIG-50a-15@gated-at.bofh.it> (permalink)
References <q2afE-4d2-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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[ 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. ]

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
CC: Matt Turner <mattst88@gmail.com>
CC: linux-alpha@vger.kernel.org
---
 arch/alpha/include/asm/unistd.h      | 2 +-
 arch/alpha/include/uapi/asm/unistd.h | 1 +
 arch/alpha/kernel/systbls.S          | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index a56e608..07aa4ca 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,7 +3,7 @@
 
 #include <uapi/asm/unistd.h>
 
-#define NR_SYSCALLS			514
+#define NR_SYSCALLS			515
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index aa33bf5..7725619 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -475,5 +475,6 @@
 #define __NR_getrandom			511
 #define __NR_memfd_create		512
 #define __NR_execveat			513
+#define __NR_membarrier			514
 
 #endif /* _UAPI_ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 9b62e3f..1ea64f4 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -532,6 +532,7 @@ sys_call_table:
 	.quad sys_getrandom
 	.quad sys_memfd_create
 	.quad sys_execveat
+	.quad sys_membarrier
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object
-- 
1.9.1

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Thread

[RFC PATCH 0/9] allocate sys_membarrier system call number on major archs Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-08-27 20:10 +0200
  [RFC PATCH 7/9] alpha: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-08-27 20:10 +0200
    Re: [RFC PATCH 7/9] alpha: allocate sys_membarrier system call number Matt Turner <mattst88@gmail.com> - 2015-08-27 20:40 +0200
      [RFC PATCH v2] alpha: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-08-27 21:10 +0200
      Re: [RFC PATCH 7/9] alpha: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-08-27 21:10 +0200

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