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[209.85.220.65]) by mx.google.com with SMTPS id u13sor59518651pjx.25.2019.07.25.04.17.45 for (Google Transport Security); Thu, 25 Jul 2019 04:17:45 -0700 (PDT) Received-SPF: pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=PFlEvXsH; spf=pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=andreyknvl@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ceQemw0wuGQ3uiCqTlyBUwO60vemC2ljY3rBL1bAUvc=; b=PFlEvXsHYv4lFKGCCfXZ2BH9B+e/+FJBGpnFm58EL07XzmLkrfPE7grKe+lK7OJ+3q abjryupEyT3OpTe6vXeYbGcL1BUr5elNwdNVi9kwG5uLVwrmRNAlILwAOBEDWE3BDhoL wa/mA/jPR9b/azqkL/67D+Mm2vUNeUnKTr67F6b6zVcvZzUWDrGmaUvbPo48izoM48MU N0VWZj0yxfEFkbETpli1M4tpWnMK/JyQnFJyyMLRYouRu9gpM1Vf3XJFNTnOwCnTu9Ld itsx5ZgymWeM6DKM8q2cX7rBLN4FseRE3aGipc8TJcBEDMtdp1GaAUz+JB2Q86Y09iS0 iOkA== X-Google-Smtp-Source: APXvYqzUlCi07nILNklNsNS4HJ/lH+Efr4GjVTNZTHkDEiuYwLiGivIelhkfNGv3x1TCnih2kaTB3NQT1G7052KvmkQ= X-Received: by 2002:a17:90a:a116:: with SMTP id s22mr91662102pjp.47.1564053464334; Thu, 25 Jul 2019 04:17:44 -0700 (PDT) MIME-Version: 1.0 References: <7969018013a67ddbbf784ac7afeea5a57b1e2bcb.1563904656.git.andreyknvl@google.com> <20190724192504.GA5716@ziepe.ca> In-Reply-To: <20190724192504.GA5716@ziepe.ca> From: Andrey Konovalov Date: Thu, 25 Jul 2019 13:17:32 +0200 Message-ID: Subject: Re: [PATCH v19 11/15] IB/mlx4: untag user pointers in mlx4_get_umem_mr To: Jason Gunthorpe Cc: Linux ARM , Linux Memory Management List , LKML , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, kvm@vger.kernel.org, "open list:KERNEL SELFTEST FRAMEWORK" , Catalin Marinas , Vincenzo Frascino , Will Deacon , Mark Rutland , Andrew Morton , Greg Kroah-Hartman , Kees Cook , Yishai Hadas , Felix Kuehling , Alexander Deucher , Christian Koenig , Mauro Carvalho Chehab , Jens Wiklander , Alex Williamson , Leon Romanovsky , Luc Van Oostenryck , Dave Martin , Khalid Aziz , enh , Christoph Hellwig , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Robin Murphy , Kevin Brodsky , Szabolcs Nagy 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 Wed, Jul 24, 2019 at 9:25 PM Jason Gunthorpe wrote: > > On Tue, Jul 23, 2019 at 07:58:48PM +0200, Andrey Konovalov wrote: > > This patch is a part of a series that extends kernel ABI to allow to pass > > tagged user pointers (with the top byte set to something else other than > > 0x00) as syscall arguments. > > > > mlx4_get_umem_mr() uses provided user pointers for vma lookups, which can > > only by done with untagged pointers. > > > > Untag user pointers in this function. > > > > Reviewed-by: Jason Gunthorpe > > Acked-by: Catalin Marinas > > Reviewed-by: Kees Cook > > Signed-off-by: Andrey Konovalov > > --- > > drivers/infiniband/hw/mlx4/mr.c | 7 ++++--- > > 1 file changed, 4 insertions(+), 3 deletions(-) > > Applied to rdma-for next, please don't sent it via other trees :) Sure, thanks! > > Thanks, > Jason