Re: [PATCH] RTC: Add mmap method to rtc character driver

Segher Boessenkool
2006-07-25T18:56:38Z

>> Similar functionality is already available via VDSO on
>> platforms that support it (currently PowerPC and AMD64?) --
>> seems like a better way forward.
>>
> In general I agree, but that only works if you operate on a
> platform that
> supports virtual syscalls, and has vdso configured.

That's why I said "a better way forward", not "this already
works everywhere".

> I'm not overly familiar
> with vdso, but I didn't think vdso could be supported on all
> platforms/arches.

Oh? Which can not, and why?

Segher