linux-kernel - Re: [PATCH v6] mm: slub: move sysfs slab alloc/free interfaces to debugfs

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Date:   Wed, 19 May 2021 16:18:20 +0530
From:   Faiyaz Mohammed <faiyazm@...eaurora.org>
To:     Greg KH <greg@...ah.com>
Cc:     cl@...ux.com, penberg@...nel.org, rientjes@...gle.com,
        iamjoonsoo.kim@....com, akpm@...ux-foundation.org, vbabka@...e.cz,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        glittao@...il.com, vinmenon@...eaurora.org
Subject: Re: [PATCH v6] mm: slub: move sysfs slab alloc/free interfaces to
 debugfs

Hi,

On 5/18/2021 6:58 PM, Greg KH wrote:
> On Tue, May 18, 2021 at 06:15:49PM +0530, Faiyaz Mohammed wrote:
>> alloc_calls and free_calls implementation in sysfs have two issues,
>> one is PAGE_SIZE limitiation of sysfs and other is it does not adhere
>> to "one value per file" rule.
>>
>> To overcome this issues, move the alloc_calls and free_calls implemeation
>> to debugfs.
>>
>> Rename the alloc_calls/free_calls to alloc_traces/free_traces,
>> to be inline with what it does.
>>
>> Reported-by: kernel test robot <lkp@...el.com>
>> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
>> Signed-off-by: Faiyaz Mohammed <faiyazm@...eaurora.org>
>> ---
>>  include/linux/slub_def.h |   8 ++
>>  mm/slab_common.c         |   9 ++
>>  mm/slub.c                | 359 ++++++++++++++++++++++++++++++++++++-----------
>>  3 files changed, 294 insertions(+), 82 deletions(-)
> 
> If this is v6, what happened in v1-5?  That should always be below the
> --- line, right?
> 
Will update in next patch version.

Thanks and regards,
Mohammed Faiyaz