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Date:   Mon, 7 Dec 2020 22:24:29 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     Yu Zhao <yuzhao@google.com>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>,
        Alex Shi <alex.shi@linux.alibaba.com>,
        Michal Hocko <mhocko@kernel.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Vladimir Davydov <vdavydov.dev@gmail.com>,
        Roman Gushchin <guro@fb.com>, Vlastimil Babka <vbabka@suse.cz>,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 07/11] mm: VM_BUG_ON lru page flags
Message-ID: <20201207222429.GC7338@casper.infradead.org>
References: <20201207220949.830352-1-yuzhao@google.com>
 <20201207220949.830352-8-yuzhao@google.com>
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On Mon, Dec 07, 2020 at 03:09:45PM -0700, Yu Zhao wrote:
> Move scattered VM_BUG_ONs to two essential places that cover all
> lru list additions and deletions.

I'd like to see these converted into VM_BUG_ON_PGFLAGS so you have
to take that extra CONFIG step to enable checking them.