From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call number Date: Wed, 16 Sep 2015 15:18:39 +0000 (UTC) Message-ID: <4692929.9334.1442416719904.JavaMail.zimbra@efficios.com> References: <1441642556-30972-1-git-send-email-mathieu.desnoyers@efficios.com> <1441642556-30972-8-git-send-email-mathieu.desnoyers@efficios.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1441642556-30972-8-git-send-email-mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Catalin Marinas , Will Deacon Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton , linux-api List-Id: linux-api@vger.kernel.org ----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org wrote: > arm64 sys_membarrier number is already wired for arm64 through > asm-generic/unistd.h, but needs to be allocated separately for > the 32-bit compability layer of arm64. > > [ 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. sys_membarrier can therefore be tested on top of Linus' master. Thanks, Mathieu > > Signed-off-by: Mathieu Desnoyers > CC: Andrew Morton > CC: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > CC: Catalin Marinas > CC: Will Deacon > --- > arch/arm64/include/asm/unistd.h | 2 +- > arch/arm64/include/asm/unistd32.h | 2 ++ > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h > index 3bc498c..e70f7e7 100644 > --- a/arch/arm64/include/asm/unistd.h > +++ b/arch/arm64/include/asm/unistd.h > @@ -44,7 +44,7 @@ > #define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2) > #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5) > > -#define __NR_compat_syscalls 388 > +#define __NR_compat_syscalls 389 > #endif > > #define __ARCH_WANT_SYS_CLONE > diff --git a/arch/arm64/include/asm/unistd32.h > b/arch/arm64/include/asm/unistd32.h > index cef934a..d97be80 100644 > --- a/arch/arm64/include/asm/unistd32.h > +++ b/arch/arm64/include/asm/unistd32.h > @@ -797,3 +797,5 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create) > __SYSCALL(__NR_bpf, sys_bpf) > #define __NR_execveat 387 > __SYSCALL(__NR_execveat, compat_sys_execveat) > +#define __NR_membarrier 388 > +__SYSCALL(__NR_membarrier, sys_membarrier) > -- > 1.9.1 -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com