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Date:   Fri, 11 Jan 2019 09:31:32 -0800
From:   Matthew Wilcox <willy@infradead.org>
To:     Qian Cai <cai@lca.pw>
Cc:     akpm@linux-foundation.org, esploit@protonmail.ch,
        jejb@linux.ibm.com, dgilbert@interlog.com,
        martin.petersen@oracle.com, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] rbtree: fix the red root
Message-ID: <20190111173132.GH6310@bombadil.infradead.org>
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On Fri, Jan 11, 2019 at 11:51:45AM -0500, Qian Cai wrote:
> Reported-by: Esme <esploit@protonmail.ch>
> Signed-off-by: Qian Cai <cai@lca.pw>

What change introduced this bug?  We need a Fixes: line so the stable
people know how far to backport this fix.