From patchwork Sun Aug 4 22:48:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: john.hubbard@gmail.com X-Patchwork-Id: 11085847 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9419718A6 for ; Fri, 9 Aug 2019 09:17:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8167928BBC for ; Fri, 9 Aug 2019 09:17:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 74E8E28C54; Fri, 9 Aug 2019 09:17:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2C42F28BBC for ; Fri, 9 Aug 2019 09:17:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 06E626ED91; Fri, 9 Aug 2019 09:16:16 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) by gabe.freedesktop.org (Postfix) with ESMTPS id 335FD89147; Sun, 4 Aug 2019 22:49:40 +0000 (UTC) Received: by mail-pg1-x542.google.com with SMTP id d1so5848338pgp.4; Sun, 04 Aug 2019 15:49:40 -0700 (PDT) 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=eu6DO3fOKq0LBYojT66y5CShEfU91+ceniEr45cPpzr+R+0HCX39z0gDqbm4mTjAqo 6qkLqrTjnUuFF3uyg/WX+SO8dIIeBVYQhMX1Y6ermtXN39HA3heciN0bjnEtC/UDVvaH ArF1Z0DtZ7C939oOxfgX4CWLZ4WPuLplwFsnNaL6eMqRo/hswZbWQ+ckUJWXd9Ak5UnC XrJEWplQlH5O0f31luZqlyQXhNJ9+kFmzXumb+Bya4AZWRjM85zP6muZr8KzfjQgAMdi moha8RrisBItFlgLL5xUw6f8eHMOc/H0hOyKEYBjxlCglQQdstcKQXfB1lPoh7cqMQzL gDww== X-Gm-Message-State: APjAAAVW2QFNXqWKmx5/X3KVCVYMjfeD7VKpMsswLrTTVejFBWdkI/1U bltgIAsrJfx6iQGMEE04kJQ= X-Google-Smtp-Source: APXvYqxgxAYQpO8e4Spo4W3ynw/PKZNsgndpQrQdEvTtqBpVU8mbg8ThNNd4XLW1NQVXChaVjFCWhA== X-Received: by 2002:a05:6a00:4c:: with SMTP id i12mr70639006pfk.134.1564958979908; Sun, 04 Aug 2019 15:49:39 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id r6sm35946836pjb.22.2019.08.04.15.49.38 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 04 Aug 2019 15:49:39 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Date: Sun, 4 Aug 2019 15:48:54 -0700 Message-Id: <20190804224915.28669-14-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190804224915.28669-1-jhubbard@nvidia.com> References: <20190804224915.28669-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Mailman-Approved-At: Fri, 09 Aug 2019 09:15:45 +0000 X-Mailman-Original-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=dlbSsRNX77Ei4qlHR7ScPLtFWbFA/wSFhYs9NQOll92MElLIHH0XM5uWEMJZOCpSZn fw6jxIpOESniygQ2CP+jqWxww/Yc9BpBnk334qu29zs2vzmgy87c6XuHVe23RKpRZPxO jThG9GtjK3Wnrebfh/rbMsq7112krYjWlIxKkWaUHxL2oFoS1RUMIQu8ytggftTKUFm3 IZx5EXAb50Ed18W0N5uy/HOdcsYR51BeefJ+gL6tmEuCp3+fjY6YxhqUW4uaaLKgEtr0 EwxJMkmMabXGRdUgV0PB/zPRqhRIlzaqolidM2g4cvymDIwFa+iZFzPQhAPl2KRAIsyu jBAw== Subject: [Intel-gfx] [PATCH v2 13/34] rapidio: convert put_page() to put_user_page*() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: 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?b?SsOpcsO0bWUgR2xpc3Nl?= , Christophe JAILLET , linux-rpi-kernel@lists.infradead.org, Dan Williams , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, 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 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP 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/devices/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 = container_of(ref, struct mport_dma_req, refcount); struct mport_cdev_priv *priv = req->priv; - unsigned int i; 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 = 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); } @@ -815,7 +813,7 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, struct mport_dma_req *req; struct mport_dev *md = priv->md; struct dma_chan *chan; - int i, ret; + int ret; int nents; if (xfer->length == 0) @@ -946,8 +944,7 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, err_pg: if (!req->page_list) { - for (i = 0; i < nr_pages; i++) - put_page(page_list[i]); + put_user_pages(page_list, nr_pages); kfree(page_list); } err_req: