Re: [PATCH v2 26/28] arm64/sve: Add documentation

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Dave Martin <Dave.Martin@xxxxxxx> writes:

> On Fri, Oct 06, 2017 at 04:43:43PM +0100, Szabolcs Nagy wrote:
>> On 31/08/17 18:00, Dave Martin wrote:
>> > +9.  System runtime configuration
>> > +--------------------------------
>> > +
>> > +* To mitigate the ABI impact of expansion of the signal frame, a policy
>> > +  mechanism is provided for administrators, distro maintainers and developers
>> > +  to set the default vector length for userspace processes:
>> > +
>> > +/proc/cpu/sve_default_vector_length
>>
>>
>> elsewhere in the patch series i see
>>
>> /proc/sys/abi/sve_default_vector_length
>>
>> is this supposed to be the same?
>
> Good spot, thanks!
>
> /proc/cpu/ was the old location: they should both say /proc/abi/.
> I'll fix it.

Isn't /sys (or rather sysfs) the preferred location for modern control
knobs that mirror the kernels object model or is SVE a special case for
extending /proc?


>
> ---Dave


--
Alex Bennée
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