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Re: [PATCH v2] vpci: introduce per-domain lock to protect vpci structure
- To: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 15 Feb 2022 13:58:53 +0100
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "julien@xxxxxxx" <julien@xxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <Oleksandr_Tyshchenko@xxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Artem Mygaiev <Artem_Mygaiev@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Rahul Singh <rahul.singh@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Tue, 15 Feb 2022 12:59:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15.02.2022 13:56, Oleksandr Andrushchenko wrote:
> On 15.02.22 14:49, Jan Beulich wrote:
>> On 15.02.2022 12:54, Oleksandr Andrushchenko wrote:
>>> On 15.02.22 13:50, Jan Beulich wrote:
>>>> On 15.02.2022 12:45, Oleksandr Andrushchenko wrote:
>>>>> I'm on your side, I just want to hear that we all agree pcidevs
>>>>> needs to be converted into rwlock according with the plan you
>>>>> suggested and at least now it seems to be an acceptable solution.
>>>> I'd like to express worries though about the conversion of this
>>>> recursive lock into an r/w one.
>>> Could you please elaborate more on this?
>> Not sure what to say beyond the obvious:
> I thought you have something specific in your mind that worries
> you and you can tell what it is. Thus the qustion
Well, the "specific" thing I had in mind was: You'll need to prove
correctness, and we'll need to understand the proof.
Jan
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