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From: Heiko Carstens <heiko.carstens@de•ibm.com>
To: Arnd Bergmann <arnd@arndb•de>
Cc: Rich Felker <dalias@libc•org>,
	linux-ia64@vger•kernel.org,
	Linux-sh list <linux-sh@vger•kernel.org>,
	Catalin Marinas <catalin.marinas@arm•com>,
	Will Deacon <will.deacon@arm•com>,
	Dominik Brodowski <linux@dominikbrodowski•net>,
	linux-mips@vger•kernel.org, Max Filippov <jcmvbkbc@gmail•com>,
	Deepa Dinamani <deepa.kernel@gmail•com>,
	"H. Peter Anvin" <hpa@zytor•com>,
	sparclinux <sparclinux@vger•kernel.org>,
	linux-s390 <linux-s390@vger•kernel.org>,
	Davidlohr Bueso <dave@stgolabs•net>,
	y2038 Mailman List <y2038@lists•linaro.org>,
	Michael Ellerman <mpe@ellerman•id.au>,
	Helge Deller <deller@gmx•de>,
	the arch/x86 maintainers <x86@kernel•org>,
	Russell King - ARM Linux <linux@armlinux•org.uk>,
	Ingo Molnar <mingo@redhat•com>,
	Geert Uytterhoeven <geert@linux-m68k•org>,
	Firoz Khan <firoz.khan@linaro•org>,
	Matt Turner <mattst88@gmail•com>,
	Fenghua Yu <fenghua.yu@intel•com>,
	linux-m68k <linux-m68k@lists•linux-m68k.org>,
	Ivan Kokshaysky <ink@jurassic•park.msu.ru>,
	Andy Lutomirski <luto@kernel•org>,
	Thomas Gleixner <tglx@linutronix•de>,
	Linux ARM <linux-arm-kernel@lists•infradead.org>,
	Michal Simek <monstr@monstr•eu>, Tony Luck <tony.luck@intel•com>,
	Parisc List <linux-parisc@vger•kernel.org>,
	Linux API <linux-api@vger•kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
	Paul Burton <paul.burton@mips•com>,
	"Eric W . Biederman" <ebiederm@xmission•com>,
	alpha <linux-alpha@vger•kernel.org>,
	Martin Schwidefsky <schwidefsky@de•ibm.com>,
	Andrew Morton <akpm@linux-foundation•org>,
	linuxppc-dev <linuxppc-dev@lists•ozlabs.org>,
	David Miller <davem@davemloft•net>
Subject: Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere
Date: Mon, 14 Jan 2019 09:31:13 +0100	[thread overview]
Message-ID: <20190114083113.GB15160@osiris> (raw)
In-Reply-To: <CAK8P3a0M6qSJQAtFNKVS5muissKvyzeE9MSYT_uwKnM4BKCAug@mail.gmail.com>

On Fri, Jan 11, 2019 at 06:30:43PM +0100, Arnd Bergmann wrote:
> On Thu, Jan 10, 2019 at 9:36 PM Heiko Carstens
> <heiko.carstens@de•ibm.com> wrote:
> > On Thu, Jan 10, 2019 at 05:24:35PM +0100, Arnd Bergmann wrote:
> 
> > Since you only need/want the system call numbers, could you please
> > change these lines to:
> >
> > > +384  common  pkey_alloc              -                               -
> > > +385  common  pkey_free               -                               -
> > > +386  common  pkey_mprotect           -                               -
> >
> > Otherwise it _looks_ like we would need compat wrappers here as well,
> > even though all of them would just jump to sys_ni_syscall() in this
> > case. Making this explicit seems to better.
> 
> Ok, fair enough. I considered doing this originally and then
> decided against it for consistency with the asm-generic file,
> but I don't care much either way.
> 
> Is this something you may want to add later? I'm not sure exactly
> how pkey compares to s390 storage keys, or if this is something
> completely unrelated.

I don't think pkeys will ever work on s390, since they require a key
per mapping, while the s390 storage keys are per physical page.


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  reply	other threads:[~2019-01-14  8:31 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-10 16:24 [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 Arnd Bergmann
2019-01-10 16:24 ` [PATCH 01/15] ia64: add __NR_umount2 definition Arnd Bergmann
2019-01-10 16:24 ` [PATCH 02/15] ia64: add statx and io_pgetevents syscalls Arnd Bergmann
2019-01-10 16:24 ` [PATCH 03/15] ia64: assign syscall numbers for perf and seccomp Arnd Bergmann
2019-01-10 16:24 ` [PATCH 04/15] alpha: wire up io_pgetevents system call Arnd Bergmann
2019-01-10 16:24 ` [PATCH 05/15] alpha: update syscall macro definitions Arnd Bergmann
2019-01-10 16:24 ` [PATCH 06/15] ARM: add migrate_pages() system call Arnd Bergmann
2019-01-10 16:32   ` Will Deacon
2019-01-10 17:11     ` Arnd Bergmann
2019-01-10 16:24 ` [PATCH 07/15] ARM: add kexec_file_load system call number Arnd Bergmann
2019-01-10 16:39   ` Will Deacon
2019-01-10 17:14     ` Arnd Bergmann
2019-01-10 16:24 ` [PATCH 08/15] m68k: assign syscall number for seccomp Arnd Bergmann
2019-01-10 16:24 ` [PATCH 09/15] sh: remove duplicate unistd_32.h file Arnd Bergmann
2019-01-10 16:24 ` [PATCH 10/15] sh: add statx system call Arnd Bergmann
2019-01-10 16:24 ` [PATCH 11/15] mips: fix n32 compat_ipc_parse_version Arnd Bergmann
2019-01-10 19:39   ` Paul Burton
2019-01-10 23:04     ` Arnd Bergmann
2019-01-11 19:25   ` Paul Burton
2019-01-10 16:24 ` [PATCH 12/15] sparc64: fix sparc_ipc type conversion Arnd Bergmann
2019-01-10 16:24 ` [PATCH 13/15] ipc: rename old-style shmctl/semctl/msgctl syscalls Arnd Bergmann
2019-01-10 16:24 ` [PATCH 14/15] arch: add split IPC system calls where needed Arnd Bergmann
2019-01-10 20:32   ` Heiko Carstens
2019-01-11 17:33     ` Arnd Bergmann
2019-01-14  3:40   ` Michael Ellerman
2019-01-14  3:59   ` Michael Ellerman
2019-01-14  9:58     ` Michael Ellerman
2019-01-15 15:01     ` Arnd Bergmann
2019-01-15 15:18       ` Arnd Bergmann
2019-01-15 16:35         ` Geert Uytterhoeven
2019-01-15 21:24           ` Arnd Bergmann
2019-01-16  0:09         ` Michael Ellerman
2019-01-16  0:10       ` Michael Ellerman
2019-01-10 16:24 ` [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere Arnd Bergmann
2019-01-10 20:36   ` Heiko Carstens
2019-01-11 17:30     ` Arnd Bergmann
2019-01-14  8:31       ` Heiko Carstens [this message]
2019-01-15 11:52   ` Russell King - ARM Linux admin
2019-01-15 14:47     ` Arnd Bergmann
2019-01-10 16:59 ` [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 Geert Uytterhoeven
2019-01-10 17:06   ` Arnd Bergmann
2019-01-10 18:11     ` Geert Uytterhoeven
2019-01-10 22:43       ` Arnd Bergmann
2019-01-11  8:07         ` Geert Uytterhoeven
2019-01-10 18:10 ` Joseph Myers
2019-01-10 22:42   ` Arnd Bergmann
2019-01-10 23:14     ` Michael Cree

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