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[198.145.29.99]) by mx.google.com with ESMTPS id s5si13120986pgl.481.2019.02.18.05.33.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Feb 2019 05:33:40 -0800 (PST) Received-SPF: pass (google.com: domain of srs0=7u7d=qz=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=i+vNEoXI; spf=pass (google.com: domain of srs0=7u7d=qz=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom="SRS0=7u7d=QZ=linuxfoundation.org=gregkh@kernel.org" Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6ECB72147A; Mon, 18 Feb 2019 13:33:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550496820; bh=xVTxS5W0tuWQ5kJJ1jNbiEp7I+LCmqfv6UhLLql9NBg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=i+vNEoXIxe5Hp1OvQ3NurLSZEfbbTCugflAEiqrk1O0eIUhxAFb5bOL4tSSXw0HYW 9TIgap/24VjKTuROt9nlqGLWGolZBGEod/0zgEzcwouV55+7bYQukHYSzotXbKmJrB KRxlv3QugaQUeWU/qrRQ0vP6jEtObUY3fvs8LWoY= Date: Mon, 18 Feb 2019 14:33:37 +0100 From: Greg KH To: Minchan Kim Cc: linux-mm , LKML , Johannes Weiner , "Kirill A . Shutemov" , Michal Hocko , Andrew Morton , Hugh Dickins , Liu Bo , stable@vger.kernel.org Subject: Re: [PATCH] mm: Fix the pgtable leak Message-ID: <20190218133337.GB30139@kroah.com> References: <20190213112900.33963-1-minchan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190213112900.33963-1-minchan@kernel.org> User-Agent: Mutt/1.11.3 (2019-02-01) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Feb 13, 2019 at 08:29:00PM +0900, Minchan Kim wrote: > [1] was backported to v4.9 stable tree but it introduces pgtable > memory leak because with fault retrial, preallocated pagetable > could be leaked in second iteration. > To fix the problem, this patch backport [2]. > > [1] 5cf3e5ff95876, mm, memcg: fix reclaim deadlock with writeback > [2] b0b9b3df27d10, mm: stop leaking PageTables > > Fixes: 5cf3e5ff95876 ("mm, memcg: fix reclaim deadlock with writeback") > Cc: Johannes Weiner > Cc: Kirill A. Shutemov > Cc: Michal Hocko > Cc: Andrew Morton > Cc: Hugh Dickins > Cc: Liu Bo > Cc: [4.9] > Signed-off-by: Minchan Kim > --- > mm/memory.c | 21 +++++++++++++++------ > 1 file changed, 15 insertions(+), 6 deletions(-) I fixed up the changelog text to be correct, and now queued this up, thanks. greg k-h