On Wed, Oct 29, 2025 at 12:50:18PM -0700, Randy Dunlap wrote: > > On 10/29/25 9:50 AM, Lorenzo Stoakes wrote: > > > diff --git a/mm/memory.c b/mm/memory.c > > index 4c3a7e09a159..a2c79ee43d68 100644 > > --- a/mm/memory.c > > +++ b/mm/memory.c > > @@ -1478,6 +1478,10 @@ vma_needs_copy(struct vm_area_struct *dst_vma, > > struct vm_area_struct *src_vma) > > if (src_vma->anon_vma) > > return true; > > > > + /* Guard regions have momdified page tables that require copying. */ > > modified
I appear to have entered some kind of typo nirvana in this series it seems :) Thanks, will fix! > > > + if (src_vma->vm_flags & VM_MAYBE_GUARD) > > + return true; > > + > > /* > > * Don't copy ptes where a page fault will fill them correctly. Fork > > * becomes much lighter when there are big shared or private readonly > -- > ~Randy > Cheers, Lorenzo
