Re: [RFC 00/15] x86_64: Optimize percpu accesses

[Eric W. Biederman]

Jeremy Fitzhardinge <jeremy@xxxxxxxx> writes:

>> Or we could do something completely evil.  And use the other segment
>> register for the stack canary.
>>
>
> That would still require gcc changes, so it doesn't help much.

We could use %fs for the per cpu variables.  Then we could set %gs to whatever
we wanted to sync up with gcc

Eric
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/