On Tue 11-06-19 14:38:13, Ira Weiny wrote:
> On Sun, Jun 09, 2019 at 09:00:24AM -0400, Jeff Layton wrote:
> > On Wed, 2019-06-05 at 18:45 -0700, ira.we...@intel.com wrote:
> > > From: Ira Weiny
> > >
> > > GUP longterm pins of non-pagecache file system pages (eg FS DAX) are
> > > currently disall
On Sun, Jun 09, 2019 at 09:00:24AM -0400, Jeff Layton wrote:
> On Wed, 2019-06-05 at 18:45 -0700, ira.we...@intel.com wrote:
> > From: Ira Weiny
> >
> > GUP longterm pins of non-pagecache file system pages (eg FS DAX) are
> > currently disallowed because they are unsafe.
> >
> > The danger for p
On Wed, 2019-06-05 at 18:45 -0700, ira.we...@intel.com wrote:
> From: Ira Weiny
>
> GUP longterm pins of non-pagecache file system pages (eg FS DAX) are
> currently disallowed because they are unsafe.
>
> The danger for pinning these pages comes from the fact that hole punch
> and/or truncate of
From: Ira Weiny
GUP longterm pins of non-pagecache file system pages (eg FS DAX) are
currently disallowed because they are unsafe.
The danger for pinning these pages comes from the fact that hole punch
and/or truncate of those files results in the pages being mapped and
pinned by a user space pr
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