Re: [PATCH v4 4/5] mm: rename zone->lock to zone->_lock

[Zi Yan]

On 27 Feb 2026, at 11:00, Dmitry Ilvokhin wrote:

> This intentionally breaks direct users of zone->lock at compile time so
> all call sites are converted to the zone lock wrappers. Without the
> rename, present and future out-of-tree code could continue using
> spin_lock(&zone->lock) and bypass the wrappers and tracing
> infrastructure.
>
> No functional change intended.
>
> Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Dmitry Ilvokhin <d@xxxxxxxxxxxx>
> Acked-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
> Acked-by: SeongJae Park <sj@xxxxxxxxxx>
> ---
>  include/linux/mmzone.h      |  7 +++++--
>  include/linux/mmzone_lock.h | 12 ++++++------
>  mm/compaction.c             |  4 ++--
>  mm/internal.h               |  2 +-
>  mm/page_alloc.c             | 16 ++++++++--------
>  mm/page_isolation.c         |  4 ++--
>  mm/page_owner.c             |  2 +-
>  7 files changed, 25 insertions(+), 22 deletions(-)
>
Acked-by: Zi Yan <ziy@xxxxxxxxxx>

Best Regards,
Yan, Zi