From: Andrew Morton <akpm@linux-foundation.org>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-mm@kvack.org, Pavel Emelyanov <xemul@parallels.com>,
zhang.zhanghailiang@huawei.com,
Dave Hansen <dave.hansen@intel.com>,
Rik van Riel <riel@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
"Huangpeng (Peter)" <peter.huangpeng@huawei.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Bamvor Zhang Jian <bamvor.zhangjian@linaro.org>,
Bharata B Rao <bharata@linux.vnet.ibm.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: Re: [PATCH 12/12] userfaultfd: register uapi generic syscall (aarch64)
Date: Tue, 15 Sep 2015 13:02:53 -0700 [thread overview]
Message-ID: <20150915130253.c1a0fbbab9ce93b38a2bfd43@linux-foundation.org> (raw)
In-Reply-To: <1441745010-14314-13-git-send-email-aarcange@redhat.com>
On Tue, 8 Sep 2015 22:43:30 +0200 Andrea Arcangeli <aarcange@redhat.com> wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> Add the userfaultfd syscalls to uapi asm-generic, it was tested with
> postcopy live migration on aarch64 with both 4k and 64k pagesize kernels.
>
> ...
>
> --- a/include/uapi/asm-generic/unistd.h
> +++ b/include/uapi/asm-generic/unistd.h
> @@ -709,9 +709,11 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
> __SYSCALL(__NR_bpf, sys_bpf)
> #define __NR_execveat 281
> __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
> +#define __NR_userfaultfd 282
> +__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
>
> #undef __NR_syscalls
> -#define __NR_syscalls 282
> +#define __NR_syscalls 283
sys_membarrier got there first. Does this version look OK?
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: userfaultfd: register uapi generic syscall (aarch64)
Add the userfaultfd syscalls to uapi asm-generic, it was tested with
postcopy live migration on aarch64 with both 4k and 64k pagesize kernels.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/uapi/asm-generic/unistd.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff -puN include/uapi/asm-generic/unistd.h~userfaultfd-register-uapi-generic-syscall-aarch64 include/uapi/asm-generic/unistd.h
--- a/include/uapi/asm-generic/unistd.h~userfaultfd-register-uapi-generic-syscall-aarch64
+++ a/include/uapi/asm-generic/unistd.h
@@ -709,17 +709,19 @@ __SYSCALL(__NR_memfd_create, sys_memfd_c
__SYSCALL(__NR_bpf, sys_bpf)
#define __NR_execveat 281
__SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
-#define __NR_membarrier 282
+#define __NR_userfaultfd 282
+__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
+#define __NR_membarrier 283
__SYSCALL(__NR_membarrier, sys_membarrier)
#undef __NR_syscalls
-#define __NR_syscalls 283
+#define __NR_syscalls 284
/*
* All syscalls below here should go away really,
* these are provided for both review and as a porting
* help for the C library version.
-*
+ *
* Last chance: are any of these important enough to
* enable by default?
*/
_
--
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next prev parent reply other threads:[~2015-09-15 20:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-08 20:43 [PATCH 00/12] userfaultfd non-x86 and selftest updates for 4.2.0+ Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 01/12] userfaultfd: selftest: update userfaultfd x86 32bit syscall number Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 02/12] userfaultfd: Revert "userfaultfd: waitqueue: add nr wake parameter to __wake_up_locked_key" Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 03/12] userfaultfd: selftests: vm: pick up sanitized kernel headers Andrea Arcangeli
2015-09-09 2:48 ` Michael Ellerman
2015-09-08 20:43 ` [PATCH 04/12] userfaultfd: selftest: headers fixup Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 05/12] userfaultfd: selftest: only warn if __NR_userfaultfd is undefined Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 06/12] userfaultfd: selftest: avoid my_bcmp false positives with powerpc Andrea Arcangeli
2015-09-09 2:50 ` Michael Ellerman
2015-09-09 17:02 ` Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 07/12] userfaultfd: selftest: Fix compiler warnings on 32-bit Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 08/12] userfaultfd: selftest: return an error if BOUNCE_VERIFY fails Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 09/12] userfaultfd: selftest: don't error out if pthread_mutex_t isn't identical Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 10/12] userfaultfd: powerpc: Bump up __NR_syscalls to account for __NR_userfaultfd Andrea Arcangeli
2015-09-09 2:48 ` Michael Ellerman
2015-09-08 20:43 ` [PATCH 11/12] userfaultfd: powerpc: implement syscall Andrea Arcangeli
2015-09-08 20:43 ` [PATCH 12/12] userfaultfd: register uapi generic syscall (aarch64) Andrea Arcangeli
2015-09-15 20:02 ` Andrew Morton [this message]
2015-09-15 20:20 ` Mathieu Desnoyers
2015-09-15 20:47 ` Andrea Arcangeli
2015-09-30 21:56 ` [PATCH 00/12] userfaultfd non-x86 and selftest updates for 4.2.0+ Mike Kravetz
2015-10-01 0:06 ` Andrea Arcangeli
2015-10-01 0:42 ` Mike Kravetz
2015-10-01 16:04 ` Andrea Arcangeli
2015-10-01 16:45 ` Mike Kravetz
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