On Mon, Apr 29, 2024 at 03:26:22PM +0200, David Hildenbrand wrote:
> > The test patch here doesn't need to rush. David, how about you prepare a
> > better and verified patch and post it separately, making sure to cover all
> > the things we used to cover plus the unshare? IIUC it used to be not
>
On 29.04.24 15:10, Peter Xu wrote:
On Mon, Apr 29, 2024 at 09:28:15AM +0200, David Hildenbrand wrote:
On 28.04.24 21:01, Peter Xu wrote:
Prefault, especially with RW, makes the GUP test too easy, and may not yet
reach the core of the test.
For example, R/O longterm pins will just hit,
On Mon, Apr 29, 2024 at 09:28:15AM +0200, David Hildenbrand wrote:
> On 28.04.24 21:01, Peter Xu wrote:
> > Prefault, especially with RW, makes the GUP test too easy, and may not yet
> > reach the core of the test.
> >
> > For example, R/O longterm pins will just hit, pte_write()==true for
> >
On 28.04.24 21:01, Peter Xu wrote:
Prefault, especially with RW, makes the GUP test too easy, and may not yet
reach the core of the test.
For example, R/O longterm pins will just hit, pte_write()==true for
whatever cases, the unsharing logic won't be ever tested.
This patch remove the
Prefault, especially with RW, makes the GUP test too easy, and may not yet
reach the core of the test.
For example, R/O longterm pins will just hit, pte_write()==true for
whatever cases, the unsharing logic won't be ever tested.
This patch remove the prefault. This tortures more code paths at
