Re: [PATCH 11/13] mm/mlock: convert mlock code to use vma_flags_t

[Lorenzo Stoakes]

On Wed, Jul 08, 2026 at 10:01:22PM -0400, Zi Yan wrote:
> On Mon Jun 29, 2026 at 3:25 PM EDT, 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 <ljs@xxxxxxxxxx>
> > ---
> >  mm/mlock.c | 86 +++++++++++++++++++++++++++++-------------------------
> >  1 file changed, 46 insertions(+), 40 deletions(-)
> >
>
> LGTM. What confused me when I was reading the code is VMA_LOCKED_MASK
> and VMA_LOCKED_BIT, since both share the same prefix VMA_LOCKED. Before
> looking at the definition of VMA_LOCKED_MASK, I was wondering when to
> use _BIT or _MASK. But it is just a naming thing.

Yeah, indeed, not great naming there. Was a pre-existing though, and previously
was VM_LOCKED_MASK (also not great :)

The whole VMA_LOCKED_BIT and VMA_LOCK_ON_FAULT_BIT thing is a bit weird anyway,
since you set both and then just use the latter to know not to fault in in
GUP... anyway, can revisit that one later...! :)

>
> Anyway,
>
> Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>

Thanks!

>
>
> --
> Best Regards,
> Yan, Zi
>

Cheers, Lorenzo