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Date: Thu, 7 Dec 2023 09:30:15 +0900
From: Hyeonggon Yoo <42.hyeyoo@...il.com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: David Rientjes <rientjes@...gle.com>, Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Alexander Potapenko <glider@...gle.com>,
	Andrey Konovalov <andreyknvl@...il.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Vincenzo Frascino <vincenzo.frascino@....com>,
	Marco Elver <elver@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Shakeel Butt <shakeelb@...gle.com>,
	Muchun Song <muchun.song@...ux.dev>,
	Kees Cook <keescook@...omium.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
	cgroups@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 12/21] mm/slab: consolidate includes in the internal
 mm/slab.h

On Mon, Nov 20, 2023 at 07:34:23PM +0100, Vlastimil Babka wrote:
> The #include's are scattered at several places of the file, but it does
> not seem this is needed to prevent any include loops (anymore?) so
> consolidate them at the top. Also move the misplaced kmem_cache_init()
> declaration away from the top.
> 
> Signed-off-by: Vlastimil Babka <vbabka@...e.cz>
> ---
>  mm/slab.h | 28 ++++++++++++++--------------
>  1 file changed, 14 insertions(+), 14 deletions(-)
> 
> diff --git a/mm/slab.h b/mm/slab.h
> index 3a8d13c099fa..1ac3a2f8d4c0 100644
> --- a/mm/slab.h
> +++ b/mm/slab.h
> @@ -1,10 +1,22 @@
>  /* SPDX-License-Identifier: GPL-2.0 */
>  #ifndef MM_SLAB_H
>  #define MM_SLAB_H
> +
> +#include <linux/reciprocal_div.h>
> +#include <linux/list_lru.h>
> +#include <linux/local_lock.h>
> +#include <linux/random.h>
> +#include <linux/kobject.h>
> +#include <linux/sched/mm.h>
> +#include <linux/memcontrol.h>
> +#include <linux/fault-inject.h>
> +#include <linux/kmemleak.h>
> +#include <linux/kfence.h>
> +#include <linux/kasan.h>
> +
>  /*
>   * Internal slab definitions
>   */
> -void __init kmem_cache_init(void);
>  
>  #ifdef CONFIG_64BIT
>  # ifdef system_has_cmpxchg128
> @@ -209,11 +221,6 @@ static inline size_t slab_size(const struct slab *slab)
>  	return PAGE_SIZE << slab_order(slab);
>  }
>  
> -#include <linux/kfence.h>
> -#include <linux/kobject.h>
> -#include <linux/reciprocal_div.h>
> -#include <linux/local_lock.h>
> -
>  #ifdef CONFIG_SLUB_CPU_PARTIAL
>  #define slub_percpu_partial(c)			((c)->partial)
>  
> @@ -347,14 +354,6 @@ static inline int objs_per_slab(const struct kmem_cache *cache,
>  	return slab->objects;
>  }
>  
> -#include <linux/memcontrol.h>
> -#include <linux/fault-inject.h>
> -#include <linux/kasan.h>
> -#include <linux/kmemleak.h>
> -#include <linux/random.h>
> -#include <linux/sched/mm.h>
> -#include <linux/list_lru.h>
> -
>  /*
>   * State of the slab allocator.
>   *
> @@ -405,6 +404,7 @@ gfp_t kmalloc_fix_flags(gfp_t flags);
>  /* Functions provided by the slab allocators */
>  int __kmem_cache_create(struct kmem_cache *, slab_flags_t flags);
>  
> +void __init kmem_cache_init(void);
>  void __init new_kmalloc_cache(int idx, enum kmalloc_cache_type type,
>  			      slab_flags_t flags);
>  extern void create_boot_cache(struct kmem_cache *, const char *name,

Looks good to me,
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@...il.com>

> 
> -- 
> 2.42.1
> 
> 

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