Re: [PATCH v3 13/21] slab: remove defer_deactivate_slab()

[Hao Li]

On Fri, Jan 16, 2026 at 03:40:33PM +0100, Vlastimil Babka wrote:
> There are no more cpu slabs so we don't need their deferred
> deactivation. The function is now only used from places where we
> allocate a new slab but then can't spin on node list_lock to put it on
> the partial list. Instead of the deferred action we can free it directly
> via __free_slab(), we just need to tell it to use _nolock() freeing of
> the underlying pages and take care of the accounting.
> 
> Since free_frozen_pages_nolock() variant does not yet exist for code
> outside of the page allocator, create it as a trivial wrapper for
> __free_frozen_pages(..., FPI_TRYLOCK).
> 
> Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
> ---
>  mm/internal.h   |  1 +
>  mm/page_alloc.c |  5 +++++
>  mm/slab.h       |  8 +-------
>  mm/slub.c       | 56 ++++++++++++++++++++------------------------------------
>  4 files changed, 27 insertions(+), 43 deletions(-)
> 

Looks good to me.
Reviewed-by: Hao Li <hao.li@xxxxxxxxx>

-- 
Thanks,
Hao