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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id u9sm38179744pgc.5.2019.08.01.19.20.30 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:20:32 -0700 (PDT) X-Inumbo-ID: 1ace5dff-b4cc-11e9-8980-bc764e045a96 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=60C6UutqWDg70MnmR2wOYRHcozVv05mGJual4EWfkd0=; b=OcjBgeGu8UZCjg/O5HE3tZTmbKV/JxG356gcwN7XI4m7laLxmDfYwr2J+xgouxj3fQ Co0dhwd0qY47xArJmyB+EhpJv8h8AiGjGK24lKEHkHPsH9RjihM7pMRvNW+41GJgCLyu 4QfSp0AC2zblPx9c01ipPR4kYld7HwcvdeZgybQdYrqzUfXd232AEHGN5xFwKTyZmR0/ 4nQ8d9yxpivs4/vMxrtO/9Xc8hiQJpvET/VRicWc2zu2qdEUBl4z9cTSyxwtCJdabvcM Ei+d8hsTWnZC71PLDlgF5ytQlKruZFkMxa42zlyyGk4z93JPolm9Mu5LN9FxicLHKdhc nCzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=60C6UutqWDg70MnmR2wOYRHcozVv05mGJual4EWfkd0=; b=R0UMGzC+Ljz1nB1HMjZT54Ke4jikMcYv1RB5OoBJhiDXD0m6dFs+zwrXRHzOhFNrmA ejRvrwzFMBz2kPymjMMqF3fRnV3ct4wdkCv/lcP5cuEd86oQY7DLhW864sQKwLre0ToO BPyxPBgNIO8s33c12USuoOqHYMuBQWOAO3dXF4mDurGFnfV90f7m2xSUYEBmtFT1ceA1 tkuMYNABQeiiWAJ2B0EGY65rZAMCLBrgSMcYIRm6VGI54JAqWh8r9hQHsna6+ec5LBBn PuICh/sqvXR/dCHUS84lAHWORKzI9Iuio7llEWcMancYI3ve4XyKr8IZ6f94M+QpGZEQ 9e1Q== X-Gm-Message-State: APjAAAXLswmD0VWstkHXlui2LynYtawSGG/2Nkb1X4HHKJCCJTFuO06k YtP4BdsqkakhW+ilJoYql8Y= X-Google-Smtp-Source: APXvYqxJWuQ3PRZS25/rGW/r93tu8qJViELHafWX8OhR+SZHdvKx4eGJZdpIEmnFGk4IpVB5b1wjUA== X-Received: by 2002:a62:d45d:: with SMTP id u29mr56669248pfl.135.1564712432510; Thu, 01 Aug 2019 19:20:32 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Date: Thu, 1 Aug 2019 19:19:44 -0700 Message-Id: <20190802022005.5117-14-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190802022005.5117-1-jhubbard@nvidia.com> References: <20190802022005.5117-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Mailman-Approved-At: Fri, 02 Aug 2019 04:14:22 +0000 Subject: [Xen-devel] [PATCH 13/34] rapidio: convert put_page() to put_user_page*() X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Jan Kara , kvm@vger.kernel.org, Dave Hansen , Dave Chinner , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, sparclinux@vger.kernel.org, Ira Weiny , ceph-devel@vger.kernel.org, devel@driverdev.osuosl.org, rds-devel@oss.oracle.com, linux-rdma@vger.kernel.org, x86@kernel.org, amd-gfx@lists.freedesktop.org, Christoph Hellwig , Jason Gunthorpe , xen-devel@lists.xenproject.org, Matt Porter , devel@lists.orangefs.org, linux-media@vger.kernel.org, Kees Cook , John Hubbard , intel-gfx@lists.freedesktop.org, linux-block@vger.kernel.org, =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Christophe JAILLET , linux-rpi-kernel@lists.infradead.org, Dan Williams , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, Tvrtko Ursulin , netdev@vger.kernel.org, LKML , linux-xfs@vger.kernel.org, Alexandre Bounine , linux-crypto@vger.kernel.org, Ioan Nicu , linux-fsdevel@vger.kernel.org, Logan Gunthorpe , Al Viro Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: John Hubbard For pages that were retained via get_user_pages*(), release those pages via the new put_user_page*() routines, instead of via put_page() or release_pages(). This is part a tree-wide conversion, as described in commit fc1d8e7cca2d ("mm: introduce put_user_page*(), placeholder versions"). Cc: Matt Porter Cc: Alexandre Bounine Cc: Al Viro Cc: Logan Gunthorpe Cc: Christophe JAILLET Cc: Ioan Nicu Cc: Kees Cook Cc: Tvrtko Ursulin Signed-off-by: John Hubbard --- drivers/rapidio/devices/rio_mport_cdev.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/dev= ices/rio_mport_cdev.c index 8155f59ece38..0e8ea0e5a89e 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -572,14 +572,12 @@ static void dma_req_free(struct kref *ref) struct mport_dma_req *req =3D container_of(ref, struct mport_dma_req, refcount); struct mport_cdev_priv *priv =3D req->priv; - unsigned int i; =20 dma_unmap_sg(req->dmach->device->dev, req->sgt.sgl, req->sgt.nents, req->dir); sg_free_table(&req->sgt); if (req->page_list) { - for (i =3D 0; i < req->nr_pages; i++) - put_page(req->page_list[i]); + put_user_pages(req->page_list, req->nr_pages); kfree(req->page_list); } =20 @@ -815,7 +813,7 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, struct mport_dma_req *req; struct mport_dev *md =3D priv->md; struct dma_chan *chan; - int i, ret; + int ret; int nents; =20 if (xfer->length =3D=3D 0) @@ -946,8 +944,7 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, =20 err_pg: if (!req->page_list) { - for (i =3D 0; i < nr_pages; i++) - put_page(page_list[i]); + put_user_pages(page_list, nr_pages); kfree(page_list); } err_req: --=20 2.22.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel