linux-kernel - Re: [PATCH 2/2] arch: add pidfd and io

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190330094236.GB3801@osiris>
Date:   Sat, 30 Mar 2019 10:42:36 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Michal Simek <monstr@...str.eu>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        "James E . J . Bottomley" <James.Bottomley@...senPartnership.com>,
        Helge Deller <deller@....de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Rich Felker <dalias@...c.org>,
        "David S . Miller" <davem@...emloft.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        Firoz Khan <firoz.khan@...aro.org>,
        linux-alpha@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org
Subject: Re: [PATCH 2/2] arch: add pidfd and io_uring syscalls everywhere

On Mon, Mar 25, 2019 at 03:47:37PM +0100, Arnd Bergmann wrote:
> Add the io_uring and pidfd_send_signal system calls to all architectures.
> 
> These system calls are designed to handle both native and compat tasks,
> so all entries are the same across architectures, only arm-compat and
> the generic tale still use an old format.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

> diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
> index 02579f95f391..3eb56e639b96 100644
> --- a/arch/s390/kernel/syscalls/syscall.tbl
> +++ b/arch/s390/kernel/syscalls/syscall.tbl
> @@ -426,3 +426,7 @@
>  421	32	rt_sigtimedwait_time64	-				compat_sys_rt_sigtimedwait_time64
>  422	32	futex_time64		-				sys_futex
>  423	32	sched_rr_get_interval_time64	-			sys_sched_rr_get_interval
> +424	common	pidfd_send_signal		sys_pidfd_send_signal
> +425	common	io_uring_setup			sys_io_uring_setup
> +426	common	io_uring_enter			sys_io_uring_enter
> +427	common	io_uring_register		sys_io_uring_register

I was just about to write that io_uring_enter is missing compat
handling, but your first patch actually fixes that. Would have been
good to be cc'ed on both patches :)

For s390:
Acked-by: Heiko Carstens <heiko.carstens@...ibm.com>