From: Matthew Wilcox <willy@infradead.org>
To: Tal Zussman <tz2294@columbia.edu>
Cc: Hans de Goede <hansg@kernel.org>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vboxsf: Convert vboxsf_write_end() to use kmap_local_folio()
Date: Mon, 11 Aug 2025 23:23:58 +0100 [thread overview]
Message-ID: <aJptfu79PV4TaCq3@casper.infradead.org> (raw)
In-Reply-To: <20250811-vboxsf_folio-v1-1-fe31a8b37115@columbia.edu>
On Mon, Aug 11, 2025 at 05:42:00PM -0400, Tal Zussman wrote:
> Now that vboxsf_write_end() takes a folio, convert the kmap() call to
> kmap_local_folio(). This removes two instances of &folio->page as
> well.
Oh; something I should have said. If you have an interest in vboxsf,
it looks like there's a communication protocol that lets you pass in a
physical address and length rather than a virtual address and length.
Redesigning the Linux driver to use that would be a big win and we could
drop the kmap calls entirely.
prev parent reply other threads:[~2025-08-11 22:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-11 21:42 [PATCH] vboxsf: Convert vboxsf_write_end() to use kmap_local_folio() Tal Zussman
2025-08-11 22:12 ` Matthew Wilcox
2025-08-11 22:29 ` Tal Zussman
2025-08-11 22:23 ` Matthew Wilcox [this message]
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