linux-kernel - Re: [PATCH v17 02/15] s390/vfio-ap: use new AP bus interface to search for queue devices

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Message-ID: <342ce098-6af5-acc9-86b1-fadfb03c8522@linux.ibm.com>
Date:   Tue, 11 Jan 2022 12:32:46 -0500
From:   Tony Krowiak <akrowiak@...ux.ibm.com>
To:     Halil Pasic <pasic@...ux.ibm.com>
Cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, jjherne@...ux.ibm.com, freude@...ux.ibm.com,
        borntraeger@...ibm.com, cohuck@...hat.com, mjrosato@...ux.ibm.com,
        alex.williamson@...hat.com, kwankhede@...dia.com,
        fiuczy@...ux.ibm.com
Subject: Re: [PATCH v17 02/15] s390/vfio-ap: use new AP bus interface to
 search for queue devices



On 12/27/21 03:25, Halil Pasic wrote:
> On Thu, 21 Oct 2021 11:23:19 -0400
> Tony Krowiak <akrowiak@...ux.ibm.com> wrote:
>
>> his patch refactors the vfio_ap device driver to use the AP bus's
>> ap_get_qdev() function to retrieve the vfio_ap_queue struct containing
>> information about a queue that is bound to the vfio_ap device driver.
>> The bus's ap_get_qdev() function retrieves the queue device from a
>> hashtable keyed by APQN. This is much more efficient than looping over
>> the list of devices attached to the AP bus by several orders of
>> magnitude.
>>
>> Signed-off-by: Tony Krowiak <akrowiak@...ux.ibm.com>
>> Reviewed-by: Halil Pasic <pasic@...ux.ibm.com>
> I assume nothing changed here, and nothing significant changed around
> this patch (context). If I'm wrong, please tell me and I will
> re-evaluate.

rebase to this patch -> delete the patch -> fix resultant conflicts

>
> Regards,
> Halil