linux-kernel - Re: [PATCH v8] mm: slub: move sysfs slab alloc/free interfaces to debugfs

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Date:   Tue, 1 Jun 2021 12:30:03 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Faiyaz Mohammed <faiyazm@...eaurora.org>
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 v8] mm: slub: move sysfs slab alloc/free interfaces to
 debugfs

On Tue, Jun 01, 2021 at 03:37:37PM +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.
> 
> Debugfs cache will be created if SLAB_STORE_USER flag is set.
> 
> Rename the alloc_calls/free_calls to alloc_traces/free_traces,
> to be inline with what it does.
> 
> Signed-off-by: Faiyaz Mohammed <faiyazm@...eaurora.org>

Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>