linux-kernel - Re: [PATCH] mm: Remove redundant test from find_get_pages

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Date:   Tue, 8 Jan 2019 13:26:49 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Hugh Dickins <hughd@...gle.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: Remove redundant test from find_get_pages_contig

On Tue, 8 Jan 2019 12:26:35 -0800 Matthew Wilcox <willy@...radead.org> wrote:

> > Would it be excessively cautious to put a WARN_ON_ONCE() in there for a
> > while?
> 
> I think it would ... it'd get in the way of a subsequent patch to store
> only head pages in the page cache.

OK, shall grab.  Perhaps the changelog could gain a few words
explaining the history, etc.