[PATCH] um: Enable preemption in UML

[Richard Weinberger]

----- Ursprüngliche Mail -----
> Von: "anton ivanov" <anton.ivanov at cambridgegreys.com>
> An: "Peter Lafreniere" <peter at n8pjl.ca>
> CC: "Johannes Berg" <johannes at sipsolutions.net>, "linux-um" <linux-um at lists.infradead.org>, "richard" <richard at nod.at>
> Gesendet: Donnerstag, 21. September 2023 09:12:33
> Betreff: Re: [PATCH] um: Enable preemption in UML

> On 20/09/2023 15:49, Peter Lafreniere wrote:
>> On Wed, Sep 20, 2023 at 08:31, anton.ivanov at cambridgegreys.com wrote:
>>> From: Anton Ivanov anton.ivanov at cambridgegreys.com
>>>
>>>
>>> Preemption requires saving/restoring FPU state. This patch
>>> adds support for it using GCC intrinsics.
>>>
>>> Signed-off-by: Anton Ivanov anton.ivanov at cambridgegreys.com

I'm not so sure whether we should really directly start with CONFIG_PREEMPT.
How about implementing CONFIG_PREEMPT_COUNT first?

Thanks,
//richard