On Sat, May 11, 2024, at 16:28, Huacai Chen wrote:
> On Sat, May 11, 2024 at 8:17 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
>> Importantly, we can't just add fstatat64() on riscv32 because
>> there is no time64 version for it other than statx(), and I don't
>> want the architectures to diverge more than necessary.
>> I would not mind adding a variant of statx() that works for
>> both riscv32 and loongarch64 though, if it gets added to all
>> architectures.
>
> As far as I know, Ren Guo is trying to implement riscv64 kernel +
> riscv32 userspace, so I think riscv32 kernel won't be widely used?
I was talking about the ABI, so it doesn't actually matter
what the kernel is: any userspace ABI without
CONFIG_COMPAT_32BIT_TIME is equally affected here. On riscv32
this is the only allowed configuration, while on others (arm32
or x86-32 userland) you can turn off COMPAT_32BIT_TIME on
both 32-bit kernel and on 64-bit kernels with compat mode.
Arnd
