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[209.85.220.65]) by mx.google.com with SMTPS id a184sor16852947itc.31.2019.03.22.15.15.21 for (Google Transport Security); Fri, 22 Mar 2019 15:15:21 -0700 (PDT) Received-SPF: pass (google.com: domain of dan.j.williams@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@intel-com.20150623.gappssmtp.com header.s=20150623 header.b=pKk8vaqm; spf=pass (google.com: domain of dan.j.williams@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=dan.j.williams@gmail.com; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=NxtbMONzoE1s3tzmii8qj/NkqDi2oTH0iJ5EH+lwhzs=; b=pKk8vaqmEOWE7wmsQsAlpVqHxGSGlzdO18CvseUDa6Gqg3ToKg6HC+d6WIlSijUcfE eqZis0vwDECjehXasWtExjdgpfVBq/hrPtiOoQQSKzK3TjOl/nTT+9YmHvwUR+PM7IA4 SOb/KicPs2Y3XnvO+puWR7yKpWhSgZFJhnJ6r4/irdDupSuupBFv6JOsvwLkAcOJVCvc /c6q0yBJIunL/GfMeaZCvO2zo7Le+40UBax9xxx16S5aZ0WDQh3P5CgePOvXOOBPFbgz HBnYydx8J6DIC1a5uoC8HcWUFBhtiH/ArOQmUpRQZYjiW5VzQldKh5YBRfOuJhQ/9xvp 6L0g== X-Google-Smtp-Source: APXvYqziYcin9TkCNIVMFnILirct4rYKpjMxOpZQfFl5u+ozFqvpcOi02iZydMgVTL758Vu3P43GvK0tXOYXgqNrS/o= X-Received: by 2002:a24:298b:: with SMTP id p133mr3587931itp.43.1553292921652; Fri, 22 Mar 2019 15:15:21 -0700 (PDT) MIME-Version: 1.0 References: <20190317183438.2057-1-ira.weiny@intel.com> <20190317183438.2057-7-ira.weiny@intel.com> In-Reply-To: <20190317183438.2057-7-ira.weiny@intel.com> From: Dan Williams Date: Fri, 22 Mar 2019 15:15:10 -0700 Message-ID: Subject: Re: [RESEND 6/7] IB/qib: Use the new FOLL_LONGTERM flag to get_user_pages_fast() To: ira.weiny@intel.com Cc: Andrew Morton , John Hubbard , Michal Hocko , "Kirill A. Shutemov" , Peter Zijlstra , Jason Gunthorpe , Benjamin Herrenschmidt , Paul Mackerras , "David S. Miller" , Martin Schwidefsky , Heiko Carstens , Rich Felker , Yoshinori Sato , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Ralf Baechle , James Hogan , linux-mm , Linux Kernel Mailing List , linux-mips@vger.kernel.org, linuxppc-dev , linux-s390 , Linux-sh , sparclinux@vger.kernel.org, linux-rdma@vger.kernel.org, "netdev@vger.kernel.org" Content-Type: text/plain; charset="UTF-8" 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 Sun, Mar 17, 2019 at 7:36 PM wrote: > > From: Ira Weiny > > Use the new FOLL_LONGTERM to get_user_pages_fast() to protect against > FS DAX pages being mapped. > > Signed-off-by: Ira Weiny Looks good modulo potential __get_user_pages_fast() suggestion.