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Date:   Fri, 22 Jul 2022 08:22:26 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Tianyu Lan <ltykernel@gmail.com>
Cc:     hch@infradead.org, m.szyprowski@samsung.com, robin.murphy@arm.com,
        michael.h.kelley@microsoft.com, Tianyu Lan <tiala@microsoft.com>,
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        linux-hyperv@vger.kernel.org
Subject: Re: [PATCH] swiotlb: Clean up some coding style and minor issues
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I've applied this, but then dropped the debugfs changes.  I can't find
any good reason why we'd use the _unsafe variant here.  Can you resend
that bit and write a commit log clearly documenting the considerations
for it?