[RFC] Forcing 64-bits __OFF_T_TYPE and __INO_T_TYPE for new 32-bit architectures?

[Arnd Bergmann]

On Monday, June 6, 2016 9:56:35 PM CEST Manuel A. Fernandez Montecelo wrote:
> 
> Also, it is my understanding that this change will be pushed to cover
> existing 32-bit arches like x86 and arm-32 that will need this in the
> near future (similar to -D_FILE_OFFSET_BITS=64, I suppose).  It is
> probably better if support for RISC-V is added when there's a clear
> picture on how to proceed.
> 

Right, this is the plan for the kernel. I haven't made much progress here
since last year, but we definitely want to do this the same way for all
32-bit architectures, to avoid having more special cases in the kernel.

This means that for every syscall and ioctl command that passes a 32-bit
__kernel_time_t today, we will add a replacement with a 64-bit
__kernel_time64_t. Only after that is in place, we can have new
architectures that leave out the old interfaces based on __kernel_time_t,
similar to how how we no longer use __kernel_off_t today.

	Arnd