linux-kernel - Re: [PATCH] mm: slub: Convert sys slab alloc_calls, free

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Message-ID: <20210112122245.GK35215@casper.infradead.org>
Date:   Tue, 12 Jan 2021 12:22:45 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Faiyaz Mohammed <faiyazm@...eaurora.org>
Cc:     cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        vinmenon@...eaurora.org
Subject: Re: [PATCH] mm: slub: Convert sys slab alloc_calls, free_calls to
 bin attribute

On Tue, Jan 12, 2021 at 02:51:27PM +0530, Faiyaz Mohammed wrote:
> @@ -5180,6 +5187,7 @@ static int any_slab_objects(struct kmem_cache *s)
>  
>  struct slab_attribute {
>  	struct attribute attr;
> +	struct bin_attribute bin_attr;
>  	ssize_t (*show)(struct kmem_cache *s, char *buf);
>  	ssize_t (*store)(struct kmem_cache *s, const char *x, size_t count);
>  };

I'd rather you added a struct slab_bin_attribute.  If that's even
needed ..  I think you could just use the bin_attribute directly instead
of embedding it in this struct.