linux-kernel - Re: [PATCH v10 5/5] kasan debug: track pages allocated for vmalloc shadow

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Date:   Tue, 29 Oct 2019 20:34:50 +0300
From:   Andrey Ryabinin <aryabinin@...tuozzo.com>
To:     Daniel Axtens <dja@...ens.net>, kasan-dev@...glegroups.com,
        linux-mm@...ck.org, x86@...nel.org, glider@...gle.com,
        luto@...nel.org, linux-kernel@...r.kernel.org,
        mark.rutland@....com, dvyukov@...gle.com, christophe.leroy@....fr
Cc:     linuxppc-dev@...ts.ozlabs.org, gor@...ux.ibm.com,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v10 5/5] kasan debug: track pages allocated for vmalloc
 shadow

On 10/29/19 7:20 AM, Daniel Axtens wrote:
> Provide the current number of vmalloc shadow pages in
> /sys/kernel/debug/kasan/vmalloc_shadow_pages.
> 

I wouldn't merge this. I don't see use-case for this, besides
testing this patch set. And I think that number should be possible to
extract via page_owner mechanism.