Re: [Freedreno] [PATCH v4 1/5] mm: add mkwrite param to vm_insert_mixed()

On Mon, Jul 24, 2017 at 01:25:30PM +0200, Jan Kara wrote: > > @@ -1658,14 +1658,28 @@ static int insert_pfn(struct vm_area_struct *vma, > > unsigned long addr, > > if (!pte) > > goto out; > > retval = -EBUSY; > > - if (!pte_none(*pte)) > > - goto out_unlock; > > +

Re: [Freedreno] [PATCH v4 1/5] mm: add mkwrite param to vm_insert_mixed()

On Mon, Jul 24, 2017 at 01:15:31PM +0200, Jan Kara wrote: > On Sat 22-07-17 09:21:31, Dan Williams wrote: > > On Fri, Jul 21, 2017 at 3:39 PM, Ross Zwisler > > wrote: > > > To be able to use the common 4k zero page in DAX we need to have our PTE > > > fault path look

Re: [Freedreno] [PATCH v4 1/5] mm: add mkwrite param to vm_insert_mixed()

> @@ -1658,14 +1658,28 @@ static int insert_pfn(struct vm_area_struct *vma, > unsigned long addr, > if (!pte) > goto out; > retval = -EBUSY; > - if (!pte_none(*pte)) > - goto out_unlock; > + if (!pte_none(*pte)) { > + if (mkwrite) { > +