On Thu, Jul 02, 2026 at 09:21:07PM +0800, Lance Yang wrote:
>
> On Mon, Jun 29, 2026 at 08:25:34PM +0100, Lorenzo Stoakes wrote:
> >Replace use of the legacy vm_flags_t flags with vma_flags_t values
> >throughout the mlock logic.
> >
> >Additionally update comments to reflect the changes to be consistent.
> >
> >No functional change intended.
> >
> >Signed-off-by: Lorenzo Stoakes <[email protected]>
> >---
>
> Nothing scary jumped out at me. Just one tiny nit below ;)
>
> [...]
> >@@ -466,24 +466,23 @@ static void mlock_vma_pages_range(struct 
> >vm_area_struct *vma,
> >  */
> > static int mlock_fixup(struct vma_iterator *vmi, struct vm_area_struct *vma,
> >            struct vm_area_struct **prev, unsigned long start,
> >-           unsigned long end, vm_flags_t newflags)
> >+           unsigned long end, vma_flags_t *new_vma_flags)
> > {
> >-    vma_flags_t new_vma_flags = legacy_to_vma_flags(newflags);
> >     const vma_flags_t old_vma_flags = vma->flags;
> >     struct mm_struct *mm = vma->vm_mm;
> >     int nr_pages;
> >     int ret = 0;
> >
> >-    if (vma_flags_same_pair(&old_vma_flags, &new_vma_flags) ||
> >+    if (vma_flags_same_pair(&old_vma_flags, new_vma_flags) ||
> >         vma_is_secretmem(vma) || !vma_supports_mlock(vma)) {
> >             /*
> >-             * Don't set VM_LOCKED or VM_LOCKONFAULT and don't count.
> >+             * Don't set VMA_LOCKED_BIT or VM_LOCKONFAULT and don't count.
>
> s/VM_LOCKONFAULT/VMA_LOCKONFAULT_BIT/

Ah yeah oops, will fix and respin! Good spot [and claude missed it ugh] :)

>
> Otherwise LGTM. Feel free to add:
>
> Reviewed-by: Lance Yang <[email protected]>
>
> >              * For secretmem, don't allow the memory to be unlocked.
> >              */
> >             goto out;
> >     }
> >
> >-    vma = vma_modify_flags(vmi, *prev, vma, start, end, &new_vma_flags);
> >+    vma = vma_modify_flags(vmi, *prev, vma, start, end, new_vma_flags);
> >     if (IS_ERR(vma)) {
> >             ret = PTR_ERR(vma);
> >             goto out;
> [...]

Thanks, Lorenzo

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