gt; +* ptlocks because exclusive mmap_sem prevents deadlock.
> > +*/
> > + old_ptl = pmd_lock(vma->vm_mm, old_pmd);
> > + if (old_ptl) {
> > + pmd_t pmd;
> > +
> > + new_ptl = pmd_lockptr(mm, new_pmd);
> > + if (
On Thu, 11 Feb 2016 16:23:33 +0530
Vineet Gupta wrote:
> On Thursday 11 February 2016 03:52 PM, Martin Schwidefsky wrote:
> > On Thu, 11 Feb 2016 14:58:26 +0530
> > Vineet Gupta wrote:
> >
> >> Generic pgtable_trans_huge_deposit()/pgtable_trans_huge_withdraw
On Thu, 11 Feb 2016 14:58:26 +0530
Vineet Gupta wrote:
> Generic pgtable_trans_huge_deposit()/pgtable_trans_huge_withdraw()
> assume pgtable_t to be struct page * which is not true for all arches.
> Thus arc, s390, sparch end up with their own copies despite no special
> hardware requirements (un
