linux-kernel - Re: [PATCH v3] memory_hotplug: Free pages as higher order

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Message-ID: <20180927070957.GA19369@techadventures.net>
Date:   Thu, 27 Sep 2018 09:09:58 +0200
From:   Oscar Salvador <osalvador@...hadventures.net>
To:     Arun KS <arunks@...eaurora.org>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        boris.ostrovsky@...cle.com, jgross@...e.com,
        akpm@...ux-foundation.org, dan.j.williams@...el.com,
        mhocko@...e.com, vbabka@...e.cz, iamjoonsoo.kim@....com,
        gregkh@...uxfoundation.org, osalvador@...e.de, malat@...ian.org,
        kirill.shutemov@...ux.intel.com, jrdr.linux@...il.com,
        yasu.isimatu@...il.com, mgorman@...hsingularity.net,
        aaron.lu@...el.com, devel@...uxdriverproject.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        xen-devel@...ts.xenproject.org, vatsa@...eaurora.org,
        vinmenon@...eaurora.org, getarunks@...il.com
Subject: Re: [PATCH v3] memory_hotplug: Free pages as higher order

On Thu, Sep 27, 2018 at 12:28:50PM +0530, Arun KS wrote:
> +	__free_pages_boot_core(page, order);

I am not sure, but if we are going to use that function from the memory-hotplug code,
we might want to rename that function to something more generic?
The word "boot" suggests that this is only called from the boot stage.

And what about the prefetch operations? 
I saw that you removed them in your previous patch and that had some benefits [1].

Should we remove them here as well?

[1] https://patchwork.kernel.org/patch/10613359/ 

Thanks
-- 
Oscar Salvador
SUSE L3