From: Linus Torvalds <torvalds@linux-foundation.org>
To: Christoph Hellwig <hch@infradead.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
iommu <iommu@lists.linux-foundation.org>
Subject: Re: [GIT PULL] dma-mapping fix for Linux 5.14
Date: Sun, 25 Jul 2021 09:50:29 -0700 [thread overview]
Message-ID: <CAHk-=wi2OMmUkZFdQ0=uYmGeC3sv3eYw-p1=d51pJS-XVKaM2A@mail.gmail.com> (raw)
In-Reply-To: <YPz+qQ6dbZVDbMwu@infradead.org>
On Sat, Jul 24, 2021 at 11:03 PM Christoph Hellwig <hch@infradead.org> wrote:
>
> dma-mapping fix for Lonux 5.14
We're calling it "Lonux" now?
> - handle vmalloc addresses in dma_common_{mmap,get_sgtable}
> (Roman Skakun)
I've pulled this, but my reaction is that we've tried to avoid this in
the past. Why is Xen using vmalloc'ed addresses and passing those in
to the dma mapping routines?
It *smells* to me like a Xen-swiotlb bug, and it would have been
better to try to fix it there. Was that just too painful?
Lonus
next prev parent reply other threads:[~2021-07-25 16:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-25 6:03 [GIT PULL] dma-mapping fix for Linux 5.14 Christoph Hellwig
2021-07-25 16:50 ` Linus Torvalds [this message]
2021-07-25 17:36 ` Christoph Hellwig
2021-07-26 17:30 ` Boris Ostrovsky
2021-07-26 20:03 ` Stefano Stabellini
2021-07-29 10:17 ` Roman Skakun
2021-07-25 17:49 ` pr-tracker-bot
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