linux-kernel - Re: [PATCH v12 03/13] mm: Introduce VM_WARN_ON

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Date:   Wed, 13 Jan 2021 14:30:57 -0800
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Muchun Song <songmuchun@...edance.com>, corbet@....net,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, x86@...nel.org,
        hpa@...or.com, dave.hansen@...ux.intel.com, luto@...nel.org,
        peterz@...radead.org, viro@...iv.linux.org.uk,
        akpm@...ux-foundation.org, paulmck@...nel.org,
        mchehab+huawei@...nel.org, pawan.kumar.gupta@...ux.intel.com,
        rdunlap@...radead.org, oneukum@...e.com, anshuman.khandual@....com,
        jroedel@...e.de, almasrymina@...gle.com, rientjes@...gle.com,
        willy@...radead.org, osalvador@...e.de, mhocko@...e.com,
        song.bao.hua@...ilicon.com, david@...hat.com,
        naoya.horiguchi@....com
Cc:     duanxiongchun@...edance.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v12 03/13] mm: Introduce VM_WARN_ON_PAGE macro

On 1/6/21 6:19 AM, Muchun Song wrote:
> Very similar to VM_WARN_ON_ONCE_PAGE and VM_BUG_ON_PAGE, add
> VM_WARN_ON_PAGE macro.
> 
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> ---
>  include/linux/mmdebug.h | 8 ++++++++
>  1 file changed, 8 insertions(+)

I was going to question the use/need for this macro in the following
patch.  Looks like Oscar has already done that, and free_bootmem_page
will now use VM_BUG_ON_PAGE.  So, this patch can be dropped.

-- 
Mike Kravetz