Re: [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios

[Minchan Kim]

On Wed, Apr 29, 2026 at 10:55:25AM +0200, David Hildenbrand (Arm) wrote:
> 
> >  
> > -static bool __oom_reap_task_mm(struct mm_struct *mm)
> > +static bool __oom_reap_task_mm(struct mm_struct *mm, bool try_evict_file_folios)
> >  {
> >  	struct vm_area_struct *vma;
> >  	bool ret = true;
> > @@ -556,12 +556,14 @@ static bool __oom_reap_task_mm(struct mm_struct *mm)
> >  						mm, vma->vm_start,
> >  						vma->vm_end);
> >  			tlb_gather_mmu(&tlb, mm);
> > +			tlb.try_evict_file_folios = try_evict_file_folios;
> > +			struct zap_details details = { .ignore_access = try_evict_file_folios };
> >  			if (mmu_notifier_invalidate_range_start_nonblock(&range)) {
> >  				tlb_finish_mmu(&tlb);
> >  				ret = false;
> >  				continue;
> >  			}
> > -			unmap_page_range(&tlb, vma, range.start, range.end, NULL);
> > +			unmap_page_range(&tlb, vma, range.start, range.end, &details);
> >  			mmu_notifier_invalidate_range_end(&range);
> 
> 
> This API was changed in the meantime into zap_vma_for_reaping(), and I do not
> want to pass details on the new interface. If so, zap_vma_for_reaping() would
> handle that internally I guess.
 
Will take a look what's the best way.

Thank you.