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Re: [PATCH] x86: Wire up 32-bit direct socket calls
- From: Geert Uytterhoeven <geert at linux-m68k dot org>
- To: Arnd Bergmann <arnd at arndb dot de>
- Cc: Heiko Carstens <heiko dot carstens at de dot ibm dot com>, "H. Peter Anvin" <hpa at zytor dot com>, Andy Lutomirski <luto at kernel dot org>, X86 ML <x86 at kernel dot org>, Network Development <netdev at vger dot kernel dot org>, Tulio Magno Quites Machado Filho <tuliom at linux dot vnet dot ibm dot com>, Andy Lutomirski <luto at amacapital dot net>, "linux-kernel at vger dot kernel dot org" <linux-kernel at vger dot kernel dot org>, Alexander Larsson <alexl at redhat dot com>, Cosimo Cecchi <cosimo at endlessm dot com>, Dan Nicholson <nicholson at endlessm dot com>, libc-alpha <libc-alpha at sourceware dot org>, Rajalakshmi Srinivasaraghavan <raji at linux dot vnet dot ibm dot com>, Linux-Arch <linux-arch at vger dot kernel dot org>
- Date: Fri, 11 Sep 2015 11:54:50 +0200
- Subject: Re: [PATCH] x86: Wire up 32-bit direct socket calls
- Authentication-results: sourceware.org; auth=none
- References: <cb5138299d37d5800e2d135b01a7667fa6115854 dot 1436912629 dot git dot luto at kernel dot org> <3193269 dot 4TGcgnGPrm at wuerfel> <20150911082429 dot GA12452 at osiris> <49726621 dot LPTnfQXYGz at wuerfel>
On Fri, Sep 11, 2015 at 10:46 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Friday 11 September 2015 10:24:29 Heiko Carstens wrote:
>>
>> FWIW, the s390 approach (ignoring the "new" system calls) is only temporarily.
>> I'll enable the seperate calls later when I have time to test everything,
>> especially the glibc stuff.
>
> Ok, thanks for clarifying.
>
>> The same is true for the ipc system call. (any reason why the seperate system
>> calls haven't been enabled on x86 now as well?)
>
> Agreed, we should split that out on all architectures as well.
> Almost the same set of architectures that have sys_socketcall also
> have sys_ipc, and the reasons for changing are identical. I don't
> think we have any other system calls that are handled like this
> on some architectures but not on others. There are a couple of
> system calls (e.g. futex) that are also multiplexers, but at
> least they do it consistently.
To make sure I don't miss any (it seems I missed recvmmsg and sendmmsg for
the socketcall case, sigh), this is the list of ipc syscalls to implement?
sys_msgget
sys_msgctl
sys_msgrcv
sys_msgsnd
sys_semget
sys_semctl
sys_semtimedop
sys_shmget
sys_shmctl
sys_shmat
sys_shmdt
sys_semop() seems to be unneeded because it can be implemented using
sys_semtimedop()?
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds