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[213.95.11.211]) by mx.google.com with ESMTPS id v20si1005162wmc.131.2019.08.08.00.00.05 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Aug 2019 00:00:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of hch@lst.de designates 213.95.11.211 as permitted sender) client-ip=213.95.11.211; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of hch@lst.de designates 213.95.11.211 as permitted sender) smtp.mailfrom=hch@lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 9DA2C68AEF; Thu, 8 Aug 2019 09:00:03 +0200 (CEST) Date: Thu, 8 Aug 2019 09:00:02 +0200 From: Christoph Hellwig To: Jason Gunthorpe Cc: "linux-mm@kvack.org" , Michal Hocko , =?iso-8859-1?B?Suly9G1l?= Glisse , Andrea Arcangeli , Christoph Hellwig Subject: Re: [PATCH] mm/mmn: prevent unpaired invalidate_start and invalidate_end with non-blocking Message-ID: <20190808070002.GB29382@lst.de> References: <20190807191627.GA3008@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190807191627.GA3008@ziepe.ca> User-Agent: Mutt/1.5.17 (2007-11-01) 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: This looks like a pretty big hammer, but probably about the best we can do until locking moves to common code..