bject memory-backend-memfd,hugetlb=on,id=mem1,size=4096M
> -machine memory-backend=mem1
>
> Replacing -display gtk,gl=on with -display gtk,gl=off above would
> exercise the mmap handler.
>
> v2: Updated get_sg_table() to manually populate the scatterlist for
> both huge page
es, as this test program BUG'ed if hugetlb vmemmap
optimization was enabled in the old udmabuf.
--
Mike Kravetz
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#define __EXPORTED_HEADERS__
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#inclu
te hugetlb pages. This will require different alignment
and size requirements on the UDMABUF_CREATE API.
[1]
https://lore.kernel.org/linux-mm/20230512072036.1027784-1-junxiao.ch...@intel.com/
Fixes: 16c243e99d33 ("udmabuf: Add support for mapping hugepages (v4)")
Cc:
Signed-off-by: Mike K
On 06/07/23 12:03, Andrew Morton wrote:
> On Tue, 16 May 2023 15:34:40 -0700 Mike Kravetz
> wrote:
>
> > On 05/15/23 10:04, Mike Kravetz wrote:
> > > On 05/12/23 16:29, Mike Kravetz wrote:
> > > > On 05/12/23 14:26, James Houghton wrote:
> > > >
On 06/07/23 14:00, Andrew Morton wrote:
> On Wed, 7 Jun 2023 13:53:10 -0700 Mike Kravetz
> wrote:
>
> > >
> > > BUGs aren't good. Can we please find a way to push this along?
> > >
> > > Have we heard anything from any udmabuf people?
>
On 05/15/23 10:04, Mike Kravetz wrote:
> On 05/12/23 16:29, Mike Kravetz wrote:
> > On 05/12/23 14:26, James Houghton wrote:
> > > On Fri, May 12, 2023 at 12:20 AM Junxiao Chang
> > > wrote:
> > >
> > > This alone doesn't fix mapcounting for
On 05/12/23 16:29, Mike Kravetz wrote:
> On 05/12/23 14:26, James Houghton wrote:
> > On Fri, May 12, 2023 at 12:20 AM Junxiao Chang
> > wrote:
> >
> > This alone doesn't fix mapcounting for PTE-mapped HugeTLB pages. You
> > need something like [1]. I can
