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	Thu, 08 Aug 2024 19:15:09 +0000
Date: Thu, 8 Aug 2024 20:15:09 +0100
From: Matthew Wilcox <willy@infradead.org>
To: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org,
	linux-mm@kvack.org, akpm@linux-foundation.org,
	liam.howlett@oracle.com
Subject: Re: [PATCH 1/2] maple_tree: add test to replicate low memory race
 conditions
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References: <20240808163000.25053-1-sidhartha.kumar@oracle.com>
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In-Reply-To: <20240808163000.25053-1-sidhartha.kumar@oracle.com>

On Thu, Aug 08, 2024 at 12:29:59PM -0400, Sidhartha Kumar wrote:
> diff --git a/lib/maple_tree.c b/lib/maple_tree.c
> index aa3a5df15b8e..65fba37ef999 100644
> --- a/lib/maple_tree.c
> +++ b/lib/maple_tree.c
> @@ -6997,6 +6997,18 @@ void mt_set_non_kernel(unsigned int val)
>  	kmem_cache_set_non_kernel(maple_node_cache, val);
>  }
>  
> +extern void kmem_cache_set_callback(struct kmem_cache *cachep, void (*callback)(void *));
> +void mt_set_callback(void (*callback)(void *))
> +{
> +	kmem_cache_set_callback(maple_node_cache, callback);
> +}
> +
> +extern void kmem_cache_set_private(struct kmem_cache *cachep, void *private);
> +void mt_set_private(void *private)
> +{
> +	kmem_cache_set_private(maple_node_cache, private);
> +}
> +
>  extern unsigned long kmem_cache_get_alloc(struct kmem_cache *);
>  unsigned long mt_get_alloc_size(void)
>  {

This should surely not be in lib/maple_tree.c ...