linux-kernel - Re:Re:Re: [PATCH] kmalloc_index optimization(add kmalloc max size check)

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Date:   Tue, 21 Apr 2020 15:57:07 +0000 (UTC)
From:   Christopher Lameter <cl@...ux.com>
To:     赵军奎 <bernard@...o.com>
cc:     Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, kernel@...o.com
Subject: Re:Re:Re: [PATCH] kmalloc_index optimization(add kmalloc max size
 check)

On Tue, 21 Apr 2020, 赵军奎 wrote:

> >You could modify that to check for KMALLOC_MAX_SIZE with some more
> >conditionals but then kmalloc_index) is written so that the compiler gets
> >constant folding right.
> For this point, I am afraid i didn`t catch your idea.
> I am not sure how to modify it....
> Is there some similar code implementation in the kernel？

No. That is where you creativity and ingenuity come in. Otherwise you need
to leave it alone.