linux-kernel - [RFC PATCH 4/9] mips: allocate sys

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Message-Id: <1440698215-8355-5-git-send-email-mathieu.desnoyers@efficios.com>
Date:	Thu, 27 Aug 2015 13:56:50 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-api@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org
Subject: [RFC PATCH 4/9] mips: allocate sys_membarrier system call number

[ 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@...icios.com>
CC: Andrew Morton <akpm@...ux-foundation.org>
CC: linux-api@...r.kernel.org
CC: Ralf Baechle <ralf@...ux-mips.org>
CC: linux-mips@...ux-mips.org
---
 arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
 arch/mips/kernel/scall32-o32.S      |  1 +
 arch/mips/kernel/scall64-64.S       |  1 +
 arch/mips/kernel/scall64-n32.S      |  1 +
 arch/mips/kernel/scall64-o32.S      |  1 +
 5 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index d0bdfaa..b107983 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -378,16 +378,17 @@
 #define __NR_bpf			(__NR_Linux + 355)
 #define __NR_execveat			(__NR_Linux + 356)
 #define __NR_mlock2			(__NR_Linux + 357)
+#define __NR_membarrier			(__NR_Linux + 358)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		357
+#define __NR_Linux_syscalls		358
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		357
+#define __NR_O32_Linux_syscalls		358
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -713,16 +714,17 @@
 #define __NR_bpf			(__NR_Linux + 315)
 #define __NR_execveat			(__NR_Linux + 316)
 #define __NR_mlock2			(__NR_Linux + 317)
+#define __NR_membarrier			(__NR_Linux + 318)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		317
+#define __NR_Linux_syscalls		318
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		317
+#define __NR_64_Linux_syscalls		318
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1052,15 +1054,16 @@
 #define __NR_bpf			(__NR_Linux + 319)
 #define __NR_execveat			(__NR_Linux + 320)
 #define __NR_mlock2			(__NR_Linux + 321)
+#define __NR_membarrier			(__NR_Linux + 322)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		321
+#define __NR_Linux_syscalls		322
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		321
+#define __NR_N32_Linux_syscalls		322
 
 #endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index b0b377a..9265542 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -600,3 +600,4 @@ EXPORT(sys_call_table)
 	PTR	sys_bpf				/* 4355 */
 	PTR	sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index f12eb03..79d4fb0 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -437,4 +437,5 @@ EXPORT(sys_call_table)
 	PTR	sys_bpf				/* 5315 */
 	PTR	sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index ecdd65a..235892a 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -430,4 +430,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_bpf
 	PTR	compat_sys_execveat		/* 6320 */
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 7a8b2df..c051bd3 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -585,4 +585,5 @@ EXPORT(sys32_call_table)
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sys32_call_table,.-sys32_call_table
-- 
1.9.1

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