Re: [PATCH] ipc/sem: 64bit union semun definition

From: Arnd Bergmann
Date: Tue May 05 2015 - 15:37:50 EST


On Tuesday 05 May 2015 11:28:43 a22017@xxxxxxxxxxxx wrote:
> From: Ling-Juan Sun <a22017@xxxxxxxxxxxx>
>
> The member of semun semid_ds has new definition
> semid64_ds for 64bit architectures.
>
> Signed-off-by: Ling-Juan Sun <a22017@xxxxxxxxxxxx>
>

Please describe in more detail what this is needed for. The way I
understood this, used space would always define union semun
to define semid_ds, but that would normally match the kernel's
semid64_ds.

Also, what is the connection with 64-bit architectures here?

Arnd
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