linux-kernel - Re: [PATCH 7/7] mm/mremap: thread state through move page table operation

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Message-ID: <9e7e4fbc-3ec6-4613-9120-fa49d52a50d8@lucifer.local>
Date: Tue, 4 Mar 2025 05:40:19 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: kernel test robot <lkp@...el.com>, oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] mm/mremap: thread state through move page table
 operation

On Mon, Mar 03, 2025 at 04:12:56PM -0800, Andrew Morton wrote:
> On Mon, 3 Mar 2025 16:05:55 -0800 Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> > --- a/mm/mremap.c~mm-mremap-thread-state-through-move-page-table-operation-fix
> > +++ a/mm/mremap.c
> > @@ -475,8 +475,9 @@ static bool move_huge_pud(struct pagetab
> >  	return true;
> >  }
> >  #else
> > -static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr,
> > -			  unsigned long new_addr, pud_t *old_pud, pud_t *new_pud)
> > +static bool move_huge_pud(struct pagetable_move_control *pmc,
> > +			  unsigned long old_addr, unsigned long new_addr,
> > +			  pud_t *old_pud, pud_t *new_pud)
> >  {
> >  	WARN_ON_ONCE(1);
> >  	return false;
>
> err,
>
> --- a/mm/mremap.c~mm-mremap-thread-state-through-move-page-table-operation-fix
> +++ a/mm/mremap.c
> @@ -475,8 +475,8 @@ static bool move_huge_pud(struct pagetab
>  	return true;
>  }
>  #else
> -static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr,
> -			  unsigned long new_addr, pud_t *old_pud, pud_t *new_pud)
> +static bool move_huge_pud(struct pagetable_move_control *pmc,
> +			  pud_t *old_pud, pud_t *new_pud)
>  {
>  	WARN_ON_ONCE(1);
>  	return false;
> _
>

Thanks! Apologies for that, thought I'd caught all these... :)