linux-kernel - Re: [RFC] mm/page_alloc: Enumerate bad page reasons

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Message-ID: <d482aa0a-db1a-a4df-e2c5-1598e0fb28ad@redhat.com>
Date:   Mon, 30 Mar 2020 10:45:35 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Anshuman Khandual <anshuman.khandual@....com>, linux-mm@...ck.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC] mm/page_alloc: Enumerate bad page reasons

On 30.03.20 08:51, Anshuman Khandual wrote:
> Enumerate all existing bad page reasons which can be used in bad_page() for
> reporting via __dump_page(). Unfortunately __dump_page() cannot be changed.
> __dump_page() is called from dump_page() that accepts a raw string and is
> also an exported symbol that is currently being used from various generic
> memory functions and other drivers. This reduces code duplication while
> reporting bad pages.

Yeah sounds nice, but "56 insertions(+), 20 deletions(-)" does not sound
so nice ... and the "code duplication" is actually "repeating strings".

... I don't think we want/need this.

-- 
Thanks,

David / dhildenb