lkml.org 
[lkml]   [2021]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 0/2] KVM: do not assume PTE is writable after follow_pfn
On Mon, Feb 08, 2021 at 07:26:25PM -0400, Jason Gunthorpe wrote:
> > > page_mkclean() has some technique to make the notifier have the right
> > > size without becoming entangled in the PTL locks..
> >
> > Right. I guess it's because dax doesn't have "struct page*" on the
> > back, so it
>
> It doesn't? I thought DAX cases did?

File system DAX has a struct page, device DAX does not. Which means
everything using iomap should have a page available, but i'm adding
Dan as he should know the details :)

\
 
 \ /
  Last update: 2021-02-09 09:21    [W:0.141 / U:1.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site