linux-kernel - Re: [PATCH 4/4] Revert "mm/page_alloc: make should_fail_alloc

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Date:   Thu, 15 Jul 2021 07:34:53 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Desmond Cheong Zhi Xi <desmondcheongzx@...il.com>,
        Zhang Qiang <Qiang.Zhang@...driver.com>,
        Yanfei Xu <yanfei.xu@...driver.com>,
        Chuck Lever <chuck.lever@...cle.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Matteo Croce <mcroce@...rosoft.com>,
        Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] Revert "mm/page_alloc: make should_fail_alloc_page()
 static"

On Tue, Jul 13, 2021 at 02:56:25PM +0100, Mel Gorman wrote:
> From: Matteo Croce <mcroce@...rosoft.com>
> 
> This reverts commit f7173090033c70886d925995e9dfdfb76dbb2441.
> 
> Fix an unresolved symbol error when CONFIG_DEBUG_INFO_BTF=y:

I still fundamentally disagreed with this "fix".  Whatever code requires
a function to be non-static without a prototype and reference is
completely fucked up beyond rescue and needs to be disabled util
it can be fixed instead of worked around like this.