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SubjectRe: [PATCH] x86: Wire up 32-bit direct socket calls
On Fri, Sep 11, 2015 at 3:14 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> On Friday 11 September 2015 11:54:50 Geert Uytterhoeven wrote:
>> 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()?
>>
>
> Yes, that list looks right. IPC also includes a set of six sys_mq_*
> call, but I believe that everyone already has those as they are not
> covered by sys_ipc.
>
> For y2038 compatibility, we will likely add a new variant of
> semtimedop that takes a 64-bit timespec. While the argument passed
> there is a relative time that will never need to be longer than 68
> years, we need to accommodate user space that defines timespec
> in a sane way, and converting the argument in libc would be awkward.
>

I missed sys_ipc entirely.

Ingo, Thomas, want to just wire those up, too? I can send a patch
next week, but it'll be as trivial as the socket one.

--Andy


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