From patchwork Fri Aug 2 02:19:39 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: 11072671 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 26501174A for ; Fri, 2 Aug 2019 04:16:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 16B9A284BE for ; Fri, 2 Aug 2019 04:16:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0ABD3287CC; Fri, 2 Aug 2019 04:16:43 +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=-5.0 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7F440284BE for ; Fri, 2 Aug 2019 04:16:42 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1htOxX-0005qx-5z; Fri, 02 Aug 2019 04:14:27 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1htNBB-00074s-KP for xen-devel@lists.xenproject.org; Fri, 02 Aug 2019 02:20:25 +0000 X-Inumbo-ID: 15d87c58-b4cc-11e9-8980-bc764e045a96 Received: from mail-pl1-x643.google.com (unknown [2607:f8b0:4864:20::643]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 15d87c58-b4cc-11e9-8980-bc764e045a96; Fri, 02 Aug 2019 02:20:24 +0000 (UTC) Received: by mail-pl1-x643.google.com with SMTP id a93so32956307pla.7 for ; Thu, 01 Aug 2019 19:20:24 -0700 (PDT) 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=qLhYs8BKsJD26dkkDQW7qDqDKRQ6ceEysj+E+zVe/Zg=; b=mO2EsXInu3VlKA104JEnfgx6jDjnSEwvGouzsXnnB6AUhB4nvA/xUkFDDFSnp0kAVb uzJcZIfv98AAj+k04bO7VhQK6uHpuI27M0R+JJmNHqmsuBRinpXiyXzVO3vG2KOnwG10 9wLLSCL2f4bGbhp3gn22p2RGwRVC/ywoZ78m+PYeQh5xx0q2EjBUJcL8fGu/7GpGYNTC uoBxihJiCgimiOEov856ivIQlm2ZtbCKKeyCad06O9lOqE5uy2qRmSTr2cNmPxvRt3hH pW5v3ngGfAjNbaRjAeL1vDJ+MdUfb90y74Jjb2kpsnBznTRKzfySI1iA5+bGvCblKYHE C88Q== 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=qLhYs8BKsJD26dkkDQW7qDqDKRQ6ceEysj+E+zVe/Zg=; b=UAAGNCRxLEVNIIiHLbWJZvfFXbeMjNZThVwTpGu+Ap5rGK4nnYl2eu+4yVkRufpJoj THRGhy3zeGwxIGu5GlyyQZEEGamBNkW4qBQ2VWy+t7fqNVd05bJGJFsc1XB4zgKit8B5 Ng4EmuKqZyBKJA3PzRp5r/YXd0rT3CmQVPgJi3w2bXnwh+DeP322hBBRuZ/bAxOwGia2 K/HHfmeaWX19nyRl+vhn7ZWUjTAONST1kqwdMoFtRvV2PVbUbf9Xrl0xeO/cfQlAB7tC FoZgzFXrREJ6uTN0jUsdbkTFT74tlfQ/bVKSBYLNGXMfVObCPikS5ceRTXY84KcHXOD+ +69g== X-Gm-Message-State: APjAAAXccWI2Y2V5eCEberiyrD0HiGy4F9MTioVaQprjM92ERgomdTPr nbIu1m2yoeAjQadpwJ2iSdc= X-Google-Smtp-Source: APXvYqzyCRty8QPAc9XoTrRagrp/y/95vNaIlWT3LNdx/ZaWWXrbiDzYki+gcyf8LhQXoed6UV6NgQ== X-Received: by 2002:a17:902:6b0c:: with SMTP id o12mr26388046plk.113.1564712424200; Thu, 01 Aug 2019 19:20:24 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id u9sm38179744pgc.5.2019.08.01.19.20.22 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:20:23 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Date: Thu, 1 Aug 2019 19:19:39 -0700 Message-Id: <20190802022005.5117-9-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 08/34] media/ivtv: 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, devel@lists.orangefs.org, linux-media@vger.kernel.org, John Hubbard , intel-gfx@lists.freedesktop.org, linux-block@vger.kernel.org, =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , linux-rpi-kernel@lists.infradead.org, Dan Williams , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, Andy Walls , netdev@vger.kernel.org, LKML , linux-xfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" 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: Andy Walls Cc: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org Signed-off-by: John Hubbard --- drivers/media/pci/ivtv/ivtv-udma.c | 14 ++++---------- drivers/media/pci/ivtv/ivtv-yuv.c | 10 +++------- 2 files changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/media/pci/ivtv/ivtv-udma.c b/drivers/media/pci/ivtv/ivtv-udma.c index 5f8883031c9c..7c7f33c2412b 100644 --- a/drivers/media/pci/ivtv/ivtv-udma.c +++ b/drivers/media/pci/ivtv/ivtv-udma.c @@ -92,7 +92,7 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, { struct ivtv_dma_page_info user_dma; struct ivtv_user_dma *dma = &itv->udma; - int i, err; + int err; IVTV_DEBUG_DMA("ivtv_udma_setup, dst: 0x%08x\n", (unsigned int)ivtv_dest_addr); @@ -119,8 +119,7 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n", err, user_dma.page_count); if (err >= 0) { - for (i = 0; i < err; i++) - put_page(dma->map[i]); + put_user_pages(dma->map, err); return -EINVAL; } return err; @@ -130,9 +129,7 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, /* Fill SG List with new values */ if (ivtv_udma_fill_sg_list(dma, &user_dma, 0) < 0) { - for (i = 0; i < dma->page_count; i++) { - put_page(dma->map[i]); - } + put_user_pages(dma->map, dma->page_count); dma->page_count = 0; return -ENOMEM; } @@ -153,7 +150,6 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, void ivtv_udma_unmap(struct ivtv *itv) { struct ivtv_user_dma *dma = &itv->udma; - int i; IVTV_DEBUG_INFO("ivtv_unmap_user_dma\n"); @@ -170,9 +166,7 @@ void ivtv_udma_unmap(struct ivtv *itv) ivtv_udma_sync_for_cpu(itv); /* Release User Pages */ - for (i = 0; i < dma->page_count; i++) { - put_page(dma->map[i]); - } + put_user_pages(dma->map, dma->page_count); dma->page_count = 0; } diff --git a/drivers/media/pci/ivtv/ivtv-yuv.c b/drivers/media/pci/ivtv/ivtv-yuv.c index cd2fe2d444c0..9465a7d450b6 100644 --- a/drivers/media/pci/ivtv/ivtv-yuv.c +++ b/drivers/media/pci/ivtv/ivtv-yuv.c @@ -81,8 +81,7 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, uv_pages, uv_dma.page_count); if (uv_pages >= 0) { - for (i = 0; i < uv_pages; i++) - put_page(dma->map[y_pages + i]); + put_user_pages(&dma->map[y_pages], uv_pages); rc = -EFAULT; } else { rc = uv_pages; @@ -93,8 +92,7 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, y_pages, y_dma.page_count); } if (y_pages >= 0) { - for (i = 0; i < y_pages; i++) - put_page(dma->map[i]); + put_user_pages(dma->map, y_pages); /* * Inherit the -EFAULT from rc's * initialization, but allow it to be @@ -112,9 +110,7 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, /* Fill & map SG List */ if (ivtv_udma_fill_sg_list (dma, &uv_dma, ivtv_udma_fill_sg_list (dma, &y_dma, 0)) < 0) { IVTV_DEBUG_WARN("could not allocate bounce buffers for highmem userspace buffers\n"); - for (i = 0; i < dma->page_count; i++) { - put_page(dma->map[i]); - } + put_user_pages(dma->map, dma->page_count); dma->page_count = 0; return -ENOMEM; }