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Date:   Wed, 11 May 2022 05:45:41 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     "zhanghongtao (A)" <zhanghongtao22@huawei.com>
Cc:     gregkh@linuxfoundation.org, akpm@linux-foundation.org,
        linfeilong@huawei.com, suweifeng1@huawei.com,
        linux-kernel@vger.kernel.org, io-uring@vger.kernel.org
Subject: Re: [PATCH] drivers:uio: Fix system crashes during driver switchover
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I thought SPDK uses vfio?  Using uio for anything that does DMA is
completelz unsafe.