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[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) X-Inumbo-ID: 247dc02e-b70a-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=dlbSsRNX77Ei4qlHR7ScPLtFWbFA/wSFhYs9NQOll92MElLIHH0XM5uWEMJZOCpSZn fw6jxIpOESniygQ2CP+jqWxww/Yc9BpBnk334qu29zs2vzmgy87c6XuHVe23RKpRZPxO jThG9GtjK3Wnrebfh/rbMsq7112krYjWlIxKkWaUHxL2oFoS1RUMIQu8ytggftTKUFm3 IZx5EXAb50Ed18W0N5uy/HOdcsYR51BeefJ+gL6tmEuCp3+fjY6YxhqUW4uaaLKgEtr0 EwxJMkmMabXGRdUgV0PB/zPRqhRIlzaqolidM2g4cvymDIwFa+iZFzPQhAPl2KRAIsyu jBAw== 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=TQM5jViTm31uNVGLmBOsUiaiPhLNWY47sl2RKyZCu7PH9h8CocEYTaK5tcxHUGpvpL e4w/fs/4XFTBvOdjnlXI2QWdspN2n6hXPL6sDJFyDRT0O3EpsMePSGHdJfZfvd1xHV+e 8bKIoANpSwNXM8SEVGlFfSqL8nBJqALEFn4Cce5okLzH4kKzoF+Fb5yZp8K0t9G9Aq+U p3H+8TK4jT9YgwFDgk6UqqZ61D/GjQ3cWLazrct6Kco1NWzvzZDmRAQ86rh6Gdxn4kZl cmG7Uj39k0oIkViLEmrJbIM3kyEM5ROUOEiU1cwWG8+a1yB3nEFJdQN5egRudr8bcy4I fIMw== X-Gm-Message-State: APjAAAVzwbXAZwhTrYQyOXW7vXTjviAB5ZOCzD71rN8V8qgWZ2m/+6p9 lcUoIgA4gbsc8Qgvn45PTZE= 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) 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 Subject: [Xen-devel] [PATCH v2 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