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SubjectRe: [PATCH v2 13/29] arch: add split IPC system calls where needed
On Fri, Jan 18, 2019 at 5:20 PM Arnd Bergmann <> wrote:
> The IPC system call handling is highly inconsistent across architectures,
> some use sys_ipc, some use separate calls, and some use both. We also
> have some architectures that require passing IPC_64 in the flags, and
> others that set it implicitly.
> For the additon of a y2083 safe semtimedop() system call, I chose to only
> support the separate entry points, but that requires first supporting
> the regular ones with their own syscall numbers.
> The IPC_64 is now implied by the new semctl/shmctl/msgctl system
> calls even on the architectures that require passing it with the ipc()
> multiplexer.
> I'm not adding the new semtimedop() or semop() on 32-bit architectures,
> those will get implemented using the new semtimedop_time64() version
> that gets added along with the other time64 calls.
> Three 64-bit architectures (powerpc, s390 and sparc) get semtimedop().
> Signed-off-by: Arnd Bergmann <>

> arch/m68k/kernel/syscalls/syscall.tbl | 11 +++++++++++

For m68k:
Acked-by: Geert Uytterhoeven <>



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

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

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