From: Christoph Hellwig <hch@lst.de>
To: Halil Pasic <pasic@linux.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@lst.de>,
Robin Murphy <robin.murphy@arm.com>,
Gerald Schaefer <gerald.schaefer@de.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Janosch Frank <frankja@linux.ibm.com>
Subject: Re: [PATCH 1/1] s390/cio: fix virtio-ccw DMA without PV
Date: Mon, 30 Sep 2019 16:56:07 +0200 [thread overview]
Message-ID: <20190930145607.GA18163@lst.de> (raw)
In-Reply-To: <20190930135310.26148-1-pasic@linux.ibm.com>
The code looks fine, but I still very much disagree with the workaround
comments. The different mask for allocations vs streaming mappings is
exactly how the DMA API is intended to work.
next prev parent reply other threads:[~2019-09-30 14:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-30 13:53 [PATCH 1/1] s390/cio: fix virtio-ccw DMA without PV Halil Pasic
2019-09-30 14:56 ` Christoph Hellwig [this message]
2019-09-30 15:32 ` Halil Pasic
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190930145607.GA18163@lst.de \
--to=hch@lst.de \
--cc=borntraeger@de.ibm.com \
--cc=cohuck@redhat.com \
--cc=frankja@linux.ibm.com \
--cc=gerald.schaefer@de.ibm.com \
--cc=gor@linux.ibm.com \
--cc=heiko.carstens@de.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=oberpar@linux.ibm.com \
--cc=pasic@linux.ibm.com \
--cc=robin.murphy@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox