linux-kernel - Re: [PATCH v4 02/21] mm/memory_hotplug: Move {get,put}_page_bootmem() to bootmem

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Message-ID: <20201116135224.GC32129@linux>
Date:   Mon, 16 Nov 2020 14:52:24 +0100
From:   Oscar Salvador <osalvador@...e.de>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     corbet@....net, mike.kravetz@...cle.com, 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,
        mhocko@...e.com, 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 v4 02/21] mm/memory_hotplug: Move
 {get,put}_page_bootmem() to bootmem_info.c

On Fri, Nov 13, 2020 at 06:59:33PM +0800, Muchun Song wrote:
> In the later patch, we will use {get,put}_page_bootmem() to initialize
> the page for vmemmap or free vmemmap page to buddy. So move them out of
> CONFIG_MEMORY_HOTPLUG_SPARSE. This is just code movement without any
> functional change.
> 
> Signed-off-by: Muchun Song <songmuchun@...edance.com>
> Acked-by: Mike Kravetz <mike.kravetz@...cle.com>

The change itself makes sense.
I tried to check the possibles scenarios with different CONFIG_ options
toggled, but I will trust you that you ran the checks :-)

Reviewed-by: Oscar Salvador <osalvador@...e.de>


-- 
Oscar Salvador
SUSE L3