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

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Message-ID: <2bccabbd-fc41-4484-d19d-cab86cf318b6@codeaurora.org>
Date:   Wed, 17 Feb 2021 12:04:01 +0530
From:   Faiyaz Mohammed <faiyazm@...eaurora.org>
To:     Matthew Wilcox <willy@...radead.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

Hi Matthew,

On 1/12/2021 5:52 PM, Matthew Wilcox wrote:
> 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.
> 
Yes, we can use bin_attribute directly. Please find patch v2.