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[195.135.220.15]) by mx.google.com with ESMTPS id s24si1519111ejb.100.2019.01.29.06.15.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 29 Jan 2019 06:15:04 -0800 (PST) Received-SPF: softfail (google.com: domain of transitioning dave@stgolabs.net does not designate 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning dave@stgolabs.net does not designate 195.135.220.15 as permitted sender) smtp.mailfrom=dave@stgolabs.net X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0EEA4AE72; Tue, 29 Jan 2019 14:15:04 +0000 (UTC) Date: Tue, 29 Jan 2019 06:14:45 -0800 From: Davidlohr Bueso To: Jason Gunthorpe Cc: akpm@linux-foundation.org, dledford@redhat.com, jack@suse.de, ira.weiny@intel.com, linux-rdma@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, dennis.dalessandro@intel.com, mike.marciniszyn@intel.com, Davidlohr Bueso Subject: Re: [PATCH 3/6] drivers/IB,qib: do not use mmap_sem Message-ID: <20190129141445.kch4jxr2ps62ohcw@linux-r8p5> Mail-Followup-To: Jason Gunthorpe , akpm@linux-foundation.org, dledford@redhat.com, jack@suse.de, ira.weiny@intel.com, linux-rdma@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, dennis.dalessandro@intel.com, mike.marciniszyn@intel.com, Davidlohr Bueso References: <20190121174220.10583-1-dave@stgolabs.net> <20190121174220.10583-4-dave@stgolabs.net> <20190128233140.GA12530@ziepe.ca> <20190129044607.GL25106@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20190129044607.GL25106@ziepe.ca> User-Agent: NeoMutt/20180323 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 Mon, 28 Jan 2019, Jason Gunthorpe wrote: >.. and I'm looking at some of the other conversions here.. *most >likely* any caller that is manipulating rlimit for get_user_pages >should really be calling get_user_pages_longterm, so they should not >be converted to use _fast? Yeah this was something that crossed my mind could come up when I first sent the series. I'll send a v3 where I leave the gup() calls alone for rdma drivers; and we can at least convert the mmap_sem to reader. Thanks, Davidlohr