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Date:   Thu, 26 Apr 2018 13:51:51 -0500 (CDT)
From:   Christopher Lameter <cl@linux.com>
To:     Mikulas Patocka <mpatocka@redhat.com>
cc:     Mike Snitzer <snitzer@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Matthew Wilcox <willy@infradead.org>,
        Pekka Enberg <penberg@kernel.org>, linux-mm@kvack.org,
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        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] slab: introduce the flag SLAB_MINIMIZE_WASTE
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On Wed, 25 Apr 2018, Mikulas Patocka wrote:

> >
> > Could yo move that logic into slab_order()? It does something awfully
> > similar.
>
> But slab_order (and its caller) limits the order to "max_order" and we
> want more.
>
> Perhaps slab_order should be dropped and calculate_order totally
> rewritten?

Yes you likely need to do something creative with max_order if not with
more stuff.