Re: [PATCH v2] mm/shrinker: simplify shrinker_memcg_alloc() using guard()

[Muchun Song]

> On May 13, 2026, at 15:52, wangxuewen <18810879172@xxxxxxx> wrote:
> 
> Use guard(mutex) to automatically handle shrinker_mutex locking and
> unlocking in shrinker_memcg_alloc(). This removes the explicit
> mutex_unlock() call, the goto-based error path, and the redundant
> ret variable, resulting in cleaner and more concise code.
> 
> v2:
> - Drop unused 'ret' variable to avoid compiler warning (Muchun Song).

Changelog should not be placed here.

> 
> Signed-off-by: wangxuewen <wangxuewen@xxxxxxxxxx>
> ---

The right place.

> mm/shrinker.c | 13 +++++--------
> 1 file changed, 5 insertions(+), 8 deletions(-)

The change looks good to me.

Acked-by: Muchun Song <muchun.song@xxxxxxxxx>

Thanks.