From patchwork Sun Aug 4 22:48:57 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: 11076249 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 5B34417E0 for ; Mon, 5 Aug 2019 07:37:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 49A8628774 for ; Mon, 5 Aug 2019 07:37:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3DB71287C0; Mon, 5 Aug 2019 07:37:05 +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 C7978287BE for ; Mon, 5 Aug 2019 07:37:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 712856E2C8; Mon, 5 Aug 2019 07:35:34 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0B38E8946E; Sun, 4 Aug 2019 22:49:45 +0000 (UTC) Received: by mail-pf1-x444.google.com with SMTP id p184so38593700pfp.7; Sun, 04 Aug 2019 15:49:45 -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=kTcRkfjdEL9HxbTfItIV90QFm+wmUvO1k55I5bm4do4=; b=DJpj8fNJhxxTRMyakklb/SSNm5EcsqoPcBP9+IKE50aubk8ruXpS04tEhPVgwOJUNC r7NnCEuwy2wLl5XCo9+/Mjv7AiE50+d12K/CsWPSorVoiNpzrM39i+K29NWX/dCW+Zww VNfpi9dvfysrVyanyCDPy4HqzOR8U/sQ+0vTjqJhwWMdAGSGHpEf9c9tdv7//8cbq45u gnQ1ot4HJd0QmOxfEMyvTzpSXaWJ5UUYO+0Pxdfc8K7Gu5Fa0xOzDjCJxEBKOlBYcG/Y odD7kC3yShGCt6UMD/SCrB7O7Z0njYzqQKhSgagy2HRnn9IRRKaQgs+CM44ybQcx3bgV Oq+A== X-Gm-Message-State: APjAAAX7ch3Ikos2i1lgkTCk1DjqGS2AYPsOunczW4tzcTjN3clLogfu nAnYHzrpwvh/xLZonAfldPA= X-Google-Smtp-Source: APXvYqxK0LrtPmyfw6JWYh2YgP6+bfFhY9MmK0zn3g5ZQLaZJtrpA2Yd1v8gV+8lSuqs4iprBin/bw== X-Received: by 2002:a63:c442:: with SMTP id m2mr4964322pgg.286.1564958984667; Sun, 04 Aug 2019 15:49:44 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id r6sm35946836pjb.22.2019.08.04.15.49.43 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 04 Aug 2019 15:49:44 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Subject: [PATCH v2 16/34] drivers/tee: convert put_page() to put_user_page*() Date: Sun, 4 Aug 2019 15:48:57 -0700 Message-Id: <20190804224915.28669-17-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: Mon, 05 Aug 2019 07:34:45 +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=kTcRkfjdEL9HxbTfItIV90QFm+wmUvO1k55I5bm4do4=; b=Ep9s674EttVY3vG9GU1V4CO0VAp8GtJx3E70Bw+ivefofNFR36jNbbRP9fe5FIQZE4 umVMqO9egu8yEOZzzqqbwwV1I7DYNsWdtnMpjSDCOFHvVqNv36JvlrRHoOsRwSxTWTVP /zl1MVdDjGI3HP9tmkhM/nHneNlxFDUc/CIkN9kekhNbRfvwnuxQq6VAF9qYXEoT57y3 qK7R3sgIPEBixUJFK2/dzWLhYDFU1YjPdLTEb28hPm7RM/mK7OCKl8gL81RQyvUkO6K/ G7Yqf9jdy89IiWSIhZQ4nu37WAPJIhU0zlRaxZyxotIkxhGrgPKDGLU2Jo37XMi2DkW4 GJ3g== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - 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, 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 , linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, LKML , linux-xfs@vger.kernel.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jens Wiklander Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-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"). Acked-by: Jens Wiklander Signed-off-by: John Hubbard --- drivers/tee/tee_shm.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c index 2da026fd12c9..c967d0420b67 100644 --- a/drivers/tee/tee_shm.c +++ b/drivers/tee/tee_shm.c @@ -31,16 +31,13 @@ static void tee_shm_release(struct tee_shm *shm) poolm->ops->free(poolm, shm); } else if (shm->flags & TEE_SHM_REGISTER) { - size_t n; int rc = teedev->desc->ops->shm_unregister(shm->ctx, shm); if (rc) dev_err(teedev->dev.parent, "unregister shm %p failed: %d", shm, rc); - for (n = 0; n < shm->num_pages; n++) - put_page(shm->pages[n]); - + put_user_pages(shm->pages, shm->num_pages); kfree(shm->pages); } @@ -313,16 +310,13 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr, return shm; err: if (shm) { - size_t n; - if (shm->id >= 0) { mutex_lock(&teedev->mutex); idr_remove(&teedev->idr, shm->id); mutex_unlock(&teedev->mutex); } if (shm->pages) { - for (n = 0; n < shm->num_pages; n++) - put_page(shm->pages[n]); + put_user_pages(shm->pages, shm->num_pages); kfree(shm->pages); } }