Subject: Re: [PATCH] mm: Do not use double negation for testing page flags
To: Minchan Kim <minchan@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
References: <1488868597-32222-1-git-send-email-minchan@kernel.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@lge.com,
        Vlastimil Vlastimil Babka <vbabka@suse.cz>,
        Michal Hocko <mhocko@suse.com>,
        "Kirill A . Shutemov" <kirill@shutemov.name>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Chen Gang <gang.chen.5i5j@gmail.com>
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Date: Tue, 7 Mar 2017 21:31:18 +0530
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On 03/07/2017 12:06 PM, Minchan Kim wrote:
> With the discussion[1], I found it seems there are every PageFlags
> functions return bool at this moment so we don't need double
> negation any more.
> Although it's not a problem to keep it, it makes future users
> confused to use dobule negation for them, too.
> 
> Remove such possibility.

A quick search of '!!Page' in the source tree does not show any other
place having this double negation. So I guess this is all which need
to be fixed.