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[RFC PATCH v2 6/9] arm: allocate sys_membarrier system call number

From Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Newsgroups linux.kernel
Subject [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call number
Date 2015-09-07 18:20 +0200
Message-ID <q67jc-2cI-25@gated-at.bofh.it> (permalink)
References <q67jb-2cI-3@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: Russell King <linux@arm.linux.org.uk>
---
 arch/arm/include/asm/unistd.h      | 2 +-
 arch/arm/include/uapi/asm/unistd.h | 1 +
 arch/arm/kernel/calls.S            | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 32640c4..d93876c 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -19,7 +19,7 @@
  * This may need to be greater than __NR_last_syscall+1 in order to
  * account for the padding in the syscall table
  */
-#define __NR_syscalls  (388)
+#define __NR_syscalls  (389)
 
 /*
  * *NOTE*: This is a ghost syscall private to the kernel.  Only the
diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h
index 0c3f5a0..436bb32 100644
--- a/arch/arm/include/uapi/asm/unistd.h
+++ b/arch/arm/include/uapi/asm/unistd.h
@@ -414,6 +414,7 @@
 #define __NR_memfd_create		(__NR_SYSCALL_BASE+385)
 #define __NR_bpf			(__NR_SYSCALL_BASE+386)
 #define __NR_execveat			(__NR_SYSCALL_BASE+387)
+#define __NR_membarrier			(__NR_SYSCALL_BASE+388)
 
 /*
  * The following SWIs are ARM private.
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 05745eb..310699c 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -397,6 +397,7 @@
 /* 385 */	CALL(sys_memfd_create)
 		CALL(sys_bpf)
 		CALL(sys_execveat)
+		CALL(sys_membarrier)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
-- 
1.9.1

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Thread

[PATCH v2 0/9] Allocate sys_membarrier on main architectures Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
  [PATCH v2 4/9] parisc: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [PATCH v2 4/9] parisc: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:10 +0200
      Re: [PATCH v2 4/9] parisc: allocate sys_membarrier system call number Helge Deller <deller@gmx.de> - 2015-09-16 22:00 +0200
  [PATCH v2 1/9] [picked] powerpc: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
  [RFC PATCH v2 5/9] alpha: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [RFC PATCH v2 5/9] alpha: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:20 +0200
  [PATCH v2 3/9] sparc/sparc64: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [PATCH v2 3/9] sparc/sparc64: allocate sys_membarrier system  call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:10 +0200
      Re: [PATCH v2 3/9] sparc/sparc64: allocate sys_membarrier system  call number David Miller <davem@davemloft.net> - 2015-09-16 20:00 +0200
        Re: [PATCH v2 3/9] sparc/sparc64: allocate sys_membarrier system  call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 20:10 +0200
  [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:20 +0200
      Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 18:40 +0200
        Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call  number Will Deacon <will.deacon@arm.com> - 2015-09-16 18:40 +0200
      Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call  number Will Deacon <will.deacon@arm.com> - 2015-09-16 18:40 +0200
  [RFC PATCH v2 9/9] s390/s390x: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [RFC PATCH v2 9/9] s390/s390x: allocate sys_membarrier system  call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:30 +0200
      Re: [RFC PATCH v2 9/9] s390/s390x: allocate sys_membarrier system  call number Martin Schwidefsky <schwidefsky@de.ibm.com> - 2015-09-17 13:40 +0200
  [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 20:30 +0200
      Re: [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call  number Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-09-17 15:20 +0200
        Re: [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-17 15:40 +0200
          Re: [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call  number Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-09-17 15:50 +0200
  [RFC PATCH v2 8/9] ia64: allocate sys_membarrier system call number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-07 18:20 +0200
    Re: [RFC PATCH v2 8/9] ia64: allocate sys_membarrier system call  number Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-16 17:20 +0200

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