linux-kernel - Re: [PATCH v7 12/12] iommu: Improve iopf_queue_flush

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Message-ID: <ce0eea97-909b-4be2-b1fe-2d3021281e7c@linux.intel.com>
Date:   Tue, 5 Dec 2023 09:13:50 +0800
From:   Baolu Lu <baolu.lu@...ux.intel.com>
To:     Jason Gunthorpe <jgg@...pe.ca>
Cc:     baolu.lu@...ux.intel.com, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Nicolin Chen <nicolinc@...dia.com>,
        Yi Liu <yi.l.liu@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Yan Zhao <yan.y.zhao@...el.com>, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 12/12] iommu: Improve iopf_queue_flush_dev()

On 12/4/23 9:27 PM, Jason Gunthorpe wrote:
> On Mon, Dec 04, 2023 at 11:46:30AM +0800, Baolu Lu wrote:
>> On 12/2/23 4:35 AM, Jason Gunthorpe wrote:
>> I am wondering whether we can take patch 1/12 ~ 10/12 of this series as
>> a first step, a refactoring effort to support delivering iopf to
>> userspace? I will follow up with one or multiple series to add the
>> optimizations.
> I think that is reasonable, though I would change the earlier patch to
> use RCU to obtain the fault data.

All right! I will do this in the updated version.

Best regards,
baolu