From: Dan Williams <dan.j.williams@intel.com>
To: Matthew Wilcox <willy@infradead.org>,
Dan Williams <dan.j.williams@intel.com>
Cc: <nvdimm@lists.linux.dev>, <lsf-pc@lists.linuxfoundation.org>,
<linux-rdma@vger.kernel.org>, John Hubbard <jhubbard@nvidia.com>,
<dri-devel@lists.freedesktop.org>, Ming Lei <ming.lei@redhat.com>,
<linux-block@vger.kernel.org>, <linux-mm@kvack.org>,
<iommu@lists.linux.dev>, <netdev@vger.kernel.org>,
Joao Martins <joao.m.martins@oracle.com>,
"Jason Gunthorpe via Lsf-pc" <lsf-pc@lists.linux-foundation.org>,
Logan Gunthorpe <logang@deltatee.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [Lsf-pc] [LSF/MM/BPF proposal]: Physr discussion
Date: Mon, 23 Jan 2023 12:50:52 -0800 [thread overview]
Message-ID: <63cef32cbafc3_3a36e529465@dwillia2-xfh.jf.intel.com.notmuch> (raw)
In-Reply-To: <Y87p9i0vCZo/3Qa0@casper.infradead.org>
Matthew Wilcox wrote:
> On Mon, Jan 23, 2023 at 11:36:51AM -0800, Dan Williams wrote:
> > Jason Gunthorpe via Lsf-pc wrote:
> > > I would like to have a session at LSF to talk about Matthew's
> > > physr discussion starter:
> > >
> > > https://lore.kernel.org/linux-mm/YdyKWeU0HTv8m7wD@casper.infradead.org/
> > >
> > > I have become interested in this with some immediacy because of
> > > IOMMUFD and this other discussion with Christoph:
> > >
> > > https://lore.kernel.org/kvm/4-v2-472615b3877e+28f7-vfio_dma_buf_jgg@nvidia.com/
> >
> > I think this is a worthwhile discussion. My main hangup with 'struct
> > page' elimination in general is that if anything needs to be allocated
>
> You're the first one to bring up struct page elimination. Neither Jason
> nor I have that as our motivation.
Oh, ok, then maybe I misread the concern in the vfio discussion. I
thought the summary there is debating the ongoing requirement for
'struct page' for P2PDMA?
next prev parent reply other threads:[~2023-01-23 20:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-21 15:03 Jason Gunthorpe
2023-01-23 4:36 ` Matthew Wilcox
2023-01-23 13:44 ` Jason Gunthorpe
2023-01-23 19:47 ` Bart Van Assche
2023-01-24 6:15 ` Chaitanya Kulkarni
2023-01-26 9:39 ` Mike Rapoport
2023-01-23 19:36 ` [Lsf-pc] " Dan Williams
2023-01-23 20:11 ` Matthew Wilcox
2023-01-23 20:50 ` Dan Williams [this message]
2023-01-23 22:46 ` Matthew Wilcox
2023-01-26 19:38 ` Jason Gunthorpe
2023-01-26 1:45 ` Zhu Yanjun
2023-02-28 20:59 ` T.J. Mercier
2023-04-17 19:59 ` Jason Gunthorpe
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