From: Christoph Hellwig <hch@lst.de>
To: Matthew Wilcox <willy@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Christoph Hellwig <hch@lst.de>,
linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] iov_iter support for a single kernel address
Date: Mon, 13 Dec 2021 09:03:53 +0100 [thread overview]
Message-ID: <20211213080353.GA21192@lst.de> (raw)
In-Reply-To: <Yba+YSF6mkM/GYlK@casper.infradead.org>
On Mon, Dec 13, 2021 at 03:30:41AM +0000, Matthew Wilcox wrote:
>
> When working on the vmcore conversion to iov_iter, I noticed we had a
> lot of places that construct a single kvec on the stack, and it seems a
> little wasteful. Adding an ITER_KADDR type makes the iov_iter a little
> easier to use.
>
> I included conversion of 9p to use ITER_KADDR so you can see whether you
> think it's worth doing.
While it does look sensible on its own, I'm rather worried about bloating
the iov_iter interface with ever more types.
next prev parent reply other threads:[~2021-12-13 8:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-13 3:30 [RFC] iov_iter support for a single kernel address Matthew Wilcox
2021-12-13 8:03 ` Christoph Hellwig [this message]
2022-01-01 0:31 ` Al Viro
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