From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D512DC19759 for ; Fri, 2 Aug 2019 02:21:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 909D421773 for ; Fri, 2 Aug 2019 02:21:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="hA+dHc1d" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 909D421773 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E5A106B0275; Thu, 1 Aug 2019 22:20:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D6FCC6B0276; Thu, 1 Aug 2019 22:20:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C351C6B0277; Thu, 1 Aug 2019 22:20:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by kanga.kvack.org (Postfix) with ESMTP id 8E36F6B0275 for ; Thu, 1 Aug 2019 22:20:44 -0400 (EDT) Received: by mail-pf1-f199.google.com with SMTP id e20so47142985pfd.3 for ; Thu, 01 Aug 2019 19:20:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:from:to:cc:subject:date :message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=NpCZQ4VK8hzAbP37Qxye6UhXG/4cH2zDttwN2tDhLJk=; b=fDCPM2zT6ks6Go6ik94Sj3EZSaLBQK1d/BTuGWyGmqJlV1/T3Scyg6JF0y8q9ndQdI Htky3r1N54M/w0Kv2u5bFNtcjpv6mOXvLytQLi/apoUsRtRuqo/ME6gIv5f20W2l3aq7 0O+NUxlpOHEWF8o9HFL9skkakHfxpNCNgBN2OA8OzqVoHee9eiZ9aNEci/dHhgN3vAGY BwmGqbgxx30Wd1P/l8/V369ZRoB/28zBCTX/BD6Df17f6KmzkPiu0ci7eSF3GPQuLwVs HV/RFpBwVNlGCCzYf1NtQZU8OlussEmXAZ6roiwZS3TjwfbXjS1cJtYSkvNdcV7asI2S BFFg== X-Gm-Message-State: APjAAAU9txjmcLc2n3IDNP0Pd2KrE70YR/RswaOISbKhC515f6MEjKaR DSatXI00mwih7D2jVRCDuxx6g85zllMdXvShXzw6bbFMkLCoc53cP3s0fkguLiDGdcSrQ//ffnU x3//sLdkvVJ+tXdxQNljkQOAq9zhkKt8CDSd0wK48RX3IymZ1Qw0gzK6L+KyEQPnXJw== X-Received: by 2002:a62:cf07:: with SMTP id b7mr57179432pfg.217.1564712444278; Thu, 01 Aug 2019 19:20:44 -0700 (PDT) X-Received: by 2002:a62:cf07:: with SMTP id b7mr57179382pfg.217.1564712443671; Thu, 01 Aug 2019 19:20:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564712443; cv=none; d=google.com; s=arc-20160816; b=tUU58na/SNXDgQVdS/5fqEE/av2kbH7TZ4b7QfzfhNnko7PdZmadkgnVlV7ZMxMwOO RiTapO2wFsUkBY4jifzGeQwD3IS8OJdxPY2kgbS7mV6KBA6EREHbSusq5ygiPTGhRz9/ j2299pJOSW1fetM26LewVtASJDEediGeLWrEXPHihBw8InSknNQ8QjIGUXlph6XpVZVO CjNdYpEE7fFzI6Km03rpshGXLtW6TGu17NqLKO4obm2HzafNW1ndNBTIU89eVtgLeoH3 jRj/igvPoeIp+62uQZEYh0+eokXy1uCZ7wZtxWgEd/H8zVKuUuqS0uBoUpOypjyHujTy 79AA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=NpCZQ4VK8hzAbP37Qxye6UhXG/4cH2zDttwN2tDhLJk=; b=HRmX4pQ04ZX0jhUtfqeV0ePc+cINtdSO9Hk8vt2COjD8VtJEjF0JMZJkrdnucD2j5a e6aQ+1z5lef6eZXgqkkIz80Qgio4pFIdu7T+KirRB10NsQEPfE0pxpA2uNcOclA8x90m gg1eIHzY9DoUWNc3d2VX9430cS5waX4vS2L4u+uxlNUIIyj5JJJYByOlRAJSkLbkYmig bujmTkrhwDx6rm/cuBwC30d/ApRGkCbAR7MTTgOJRVAHS1H4bGta9ceSJWvWctn3O3oe QzWHUf6B4D4qI4MbzRxNGKm+ob5PTJF6LGj/f09ui/rQncpZVG6g7A4q6asDLenxHKc9 yvLw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=hA+dHc1d; spf=pass (google.com: domain of john.hubbard@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=john.hubbard@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id 13sor54950272pfi.28.2019.08.01.19.20.43 for (Google Transport Security); Thu, 01 Aug 2019 19:20:43 -0700 (PDT) Received-SPF: pass (google.com: domain of john.hubbard@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=hA+dHc1d; spf=pass (google.com: domain of john.hubbard@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=john.hubbard@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com 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=NpCZQ4VK8hzAbP37Qxye6UhXG/4cH2zDttwN2tDhLJk=; b=hA+dHc1dKtzF01UNAT1GCb910It9M6OYeo1UwisVEiPximZ0Uizqhd58Gx7EN+cwqG oOXAC9GpXS9cMgyPAFeZsWw6yiG5HTsH6dTfrkzHKXhkxbTehvYO/DkXd3o8uGT1hUxz 8W3I7PS2I6VpD8By/LG/APt7ortKYREWRihQ/MahJgv1XZqDU9aXSO+0f9WVFU4wcOzF PifhANph7r1h1aR2sJtcNbzpatSVDPr8LOmoCCwtkUnv/6xTTuq0KjPRlt5jI5AQn0Bo qGRQZk7nx9WeapKs5M+9pdwyKPbEullYlAI/CW2M7lTdWIAU5bo5Tw/OmRhRr64X9QFj r+xA== X-Google-Smtp-Source: APXvYqwoCf/Pdnvn5s1n1tJ64nDODMRXeExgk7vpJhyWgRCwW2Xl8gxjUqSaBtscPD/0WWSuL29y+g== X-Received: by 2002:a62:fb18:: with SMTP id x24mr55563811pfm.231.1564712443423; Thu, 01 Aug 2019 19:20:43 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id u9sm38179744pgc.5.2019.08.01.19.20.42 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 01 Aug 2019 19:20:42 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Cc: Christoph Hellwig , Dan Williams , Dave Chinner , Dave Hansen , Ira Weiny , Jan Kara , Jason Gunthorpe , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , LKML , amd-gfx@lists.freedesktop.org, ceph-devel@vger.kernel.org, devel@driverdev.osuosl.org, devel@lists.orangefs.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-media@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-xfs@vger.kernel.org, netdev@vger.kernel.org, rds-devel@oss.oracle.com, sparclinux@vger.kernel.org, x86@kernel.org, xen-devel@lists.xenproject.org, John Hubbard , Boris Ostrovsky , Juergen Gross Subject: [PATCH 20/34] xen: convert put_page() to put_user_page*() Date: Thu, 1 Aug 2019 19:19:51 -0700 Message-Id: <20190802022005.5117-21-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 Content-Transfer-Encoding: 8bit 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: 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: Boris Ostrovsky Cc: Juergen Gross Cc: xen-devel@lists.xenproject.org Signed-off-by: John Hubbard --- drivers/xen/gntdev.c | 5 +---- drivers/xen/privcmd.c | 7 +------ 2 files changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 4c339c7e66e5..2586b3df2bb6 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -864,10 +864,7 @@ static int gntdev_get_page(struct gntdev_copy_batch *batch, void __user *virt, static void gntdev_put_pages(struct gntdev_copy_batch *batch) { - unsigned int i; - - for (i = 0; i < batch->nr_pages; i++) - put_page(batch->pages[i]); + put_user_pages(batch->pages, batch->nr_pages); batch->nr_pages = 0; } diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 2f5ce7230a43..29e461dbee2d 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -611,15 +611,10 @@ static int lock_pages( static void unlock_pages(struct page *pages[], unsigned int nr_pages) { - unsigned int i; - if (!pages) return; - for (i = 0; i < nr_pages; i++) { - if (pages[i]) - put_page(pages[i]); - } + put_user_pages(pages, nr_pages); } static long privcmd_ioctl_dm_op(struct file *file, void __user *udata) -- 2.22.0