linux-kernel - Re: [PATCH v2 07/23] mm/slub: move kmalloc_large_node() to slab

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Date:   Tue, 26 Apr 2022 18:13:52 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Hyeonggon Yoo <42.hyeyoo@...il.com>
Cc:     Marco Elver <elver@...gle.com>,
        Matthew WilCox <willy@...radead.org>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 07/23] mm/slub: move kmalloc_large_node() to
 slab_common.c

On 4/14/22 10:57, Hyeonggon Yoo wrote:
> In later patch SLAB will also pass requests larger than order-1 page
> to page allocator. Move kmalloc_large_node() to slab_common.c.
> 
> Fold kmalloc_large_node_hook() into kmalloc_large_node() as there is
> no other caller.
> 
> Signed-off-by: Hyeonggon Yoo <42.hyeyoo@...il.com>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>

> ---
>  include/linux/slab.h |  3 +++
>  mm/slab_common.c     | 22 ++++++++++++++++++++++
>  mm/slub.c            | 25 -------------------------
>  3 files changed, 25 insertions(+), 25 deletions(-)
> 
> diff --git a/include/linux/slab.h b/include/linux/slab.h
> index 6f6e22959b39..97336acbebbf 100644
> --- a/include/linux/slab.h
> +++ b/include/linux/slab.h
> @@ -486,6 +486,9 @@ static __always_inline void *kmem_cache_alloc_node_trace(struct kmem_cache *s, g
>  
>  extern void *kmalloc_large(size_t size, gfp_t flags) __assume_page_alignment
>  						     __alloc_size(1);
> +
> +extern void *kmalloc_large_node(size_t size, gfp_t flags, int node)
> +				__assume_page_alignment __alloc_size(1);

The usual :)