Re: [Y2038] [PATCH] io_uring: use __kernel_timespec in timeout ABI

On 9/30/19 2:20 PM, Arnd Bergmann wrote:

All system calls use struct __kernel_timespec instead of the old struct timespec, but this one was just added with the old-style ABI. Change it now to enforce the use of __kernel_timespec, avoiding ABI confusion and the need for compat handlers on 32-bit architectures.

Any user space caller will have to use __kernel_timespec now, but this is unambiguous and works for any C library regardless of the time_t definition. A nicer way to specify the timeout would have been a less ambiguous 64-bit nanosecond value, but I suppose it's too late now to change that as this would impact both 32-bit and 64-bit users.

Thanks for catching that, Arnd. Applied.