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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 95D03C433DF for ; Mon, 8 Jun 2020 23:33:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7839F20775 for ; Mon, 8 Jun 2020 23:33:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591659205; bh=qdhBTkWSruYERr5czNpZSvHSiCknLERt9978u8aW+uc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=B4pBd0xu78ZmrgH21MtTIv5K/TvDz+szZJ7a7Fo5sFDar5vI629rdQqItuQWnRsT8 SgjDmVj2NpGCL8JH8iBL6cIm+cNcOkLRYCjqO9xUANOb2ucxeFoXj9vQ/ag1vQ6Stm P/TUN4yXuOFbMxIyj1NrqM+PpG2yiyjD4pfL7Zfk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732562AbgFHXdY (ORCPT ); Mon, 8 Jun 2020 19:33:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:55014 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732091AbgFHX1C (ORCPT ); Mon, 8 Jun 2020 19:27:02 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 550082076C; Mon, 8 Jun 2020 23:26:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591658822; bh=qdhBTkWSruYERr5czNpZSvHSiCknLERt9978u8aW+uc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YESvg+MIMfgkqUL/bH1wsrZzijmhluJvjB/eWjA8QBj28pg8EJ+S4ZYYXCV9bnPWB Kb/HWtPxONhVA7LG9rdtm97w5Yk6silw6DnoN09PINOBXouV2FO2iX0Sd60S4kzf13 5Y6uuocgmVzErYFD8nUsF8aIf4W5vbxgU+xJUI/A= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Christoph Hellwig , Andrew Morton , Greg Kroah-Hartman , Peter Zijlstra , Christian Borntraeger , Christophe Leroy , Daniel Vetter , David Airlie , Gao Xiang , Haiyang Zhang , Johannes Weiner , "K. Y. Srinivasan" , Laura Abbott , Mark Rutland , Michael Kelley , Minchan Kim , Nitin Gupta , Robin Murphy , Sakari Ailus , Stephen Hemminger , Sumit Semwal , Wei Liu , Benjamin Herrenschmidt , Catalin Marinas , Heiko Carstens , Paul Mackerras , Vasily Gorbik , Will Deacon , Linus Torvalds , Sasha Levin , devel@driverdev.osuosl.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Subject: [PATCH AUTOSEL 4.9 15/50] staging: android: ion: use vmap instead of vm_map_ram Date: Mon, 8 Jun 2020 19:26:05 -0400 Message-Id: <20200608232640.3370262-15-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608232640.3370262-1-sashal@kernel.org> References: <20200608232640.3370262-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christoph Hellwig [ Upstream commit 5bf9917452112694b2c774465ee4dbe441c84b77 ] vm_map_ram can keep mappings around after the vm_unmap_ram. Using that with non-PAGE_KERNEL mappings can lead to all kinds of aliasing issues. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Acked-by: Greg Kroah-Hartman Acked-by: Peter Zijlstra (Intel) Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Daniel Vetter Cc: David Airlie Cc: Gao Xiang Cc: Haiyang Zhang Cc: Johannes Weiner Cc: "K. Y. Srinivasan" Cc: Laura Abbott Cc: Mark Rutland Cc: Michael Kelley Cc: Minchan Kim Cc: Nitin Gupta Cc: Robin Murphy Cc: Sakari Ailus Cc: Stephen Hemminger Cc: Sumit Semwal Cc: Wei Liu Cc: Benjamin Herrenschmidt Cc: Catalin Marinas Cc: Heiko Carstens Cc: Paul Mackerras Cc: Vasily Gorbik Cc: Will Deacon Link: http://lkml.kernel.org/r/20200414131348.444715-4-hch@lst.de Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- drivers/staging/android/ion/ion_heap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index c2a7cb95725b..4fc5de13582d 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -105,12 +105,12 @@ int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer, static int ion_heap_clear_pages(struct page **pages, int num, pgprot_t pgprot) { - void *addr = vm_map_ram(pages, num, -1, pgprot); + void *addr = vmap(pages, num, VM_MAP, pgprot); if (!addr) return -ENOMEM; memset(addr, 0, PAGE_SIZE * num); - vm_unmap_ram(addr, num); + vunmap(addr); return 0; } -- 2.25.1 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=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C16EFC433DF for ; Mon, 8 Jun 2020 23:27:05 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9A91420801 for ; Mon, 8 Jun 2020 23:27:05 +0000 (UTC) Authentication-Results: mail.kernel.org; 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bh=qdhBTkWSruYERr5czNpZSvHSiCknLERt9978u8aW+uc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YESvg+MIMfgkqUL/bH1wsrZzijmhluJvjB/eWjA8QBj28pg8EJ+S4ZYYXCV9bnPWB Kb/HWtPxONhVA7LG9rdtm97w5Yk6silw6DnoN09PINOBXouV2FO2iX0Sd60S4kzf13 5Y6uuocgmVzErYFD8nUsF8aIf4W5vbxgU+xJUI/A= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 15/50] staging: android: ion: use vmap instead of vm_map_ram Date: Mon, 8 Jun 2020 19:26:05 -0400 Message-Id: <20200608232640.3370262-15-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608232640.3370262-1-sashal@kernel.org> References: <20200608232640.3370262-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Catalin Marinas , Peter Zijlstra , Daniel Vetter , Heiko Carstens , dri-devel@lists.freedesktop.org, Michael Kelley , Paul Mackerras , Will Deacon , Sumit Semwal , Sasha Levin , Wei Liu , Stephen Hemminger , Christian Borntraeger , Christoph Hellwig , David Airlie , Benjamin Herrenschmidt , Gao Xiang , Laura Abbott , Nitin Gupta , devel@driverdev.osuosl.org, Vasily Gorbik , Haiyang Zhang , linaro-mm-sig@lists.linaro.org, Christophe Leroy , Greg Kroah-Hartman , Linus Torvalds , Minchan Kim , Sakari Ailus , Johannes Weiner , Andrew Morton , Robin Murphy Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" From: Christoph Hellwig [ Upstream commit 5bf9917452112694b2c774465ee4dbe441c84b77 ] vm_map_ram can keep mappings around after the vm_unmap_ram. Using that with non-PAGE_KERNEL mappings can lead to all kinds of aliasing issues. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Acked-by: Greg Kroah-Hartman Acked-by: Peter Zijlstra (Intel) Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Daniel Vetter Cc: David Airlie Cc: Gao Xiang Cc: Haiyang Zhang Cc: Johannes Weiner Cc: "K. Y. Srinivasan" Cc: Laura Abbott Cc: Mark Rutland Cc: Michael Kelley Cc: Minchan Kim Cc: Nitin Gupta Cc: Robin Murphy Cc: Sakari Ailus Cc: Stephen Hemminger Cc: Sumit Semwal Cc: Wei Liu Cc: Benjamin Herrenschmidt Cc: Catalin Marinas Cc: Heiko Carstens Cc: Paul Mackerras Cc: Vasily Gorbik Cc: Will Deacon Link: http://lkml.kernel.org/r/20200414131348.444715-4-hch@lst.de Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- drivers/staging/android/ion/ion_heap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index c2a7cb95725b..4fc5de13582d 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -105,12 +105,12 @@ int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer, static int ion_heap_clear_pages(struct page **pages, int num, pgprot_t pgprot) { - void *addr = vm_map_ram(pages, num, -1, pgprot); + void *addr = vmap(pages, num, VM_MAP, pgprot); if (!addr) return -ENOMEM; memset(addr, 0, PAGE_SIZE * num); - vm_unmap_ram(addr, num); + vunmap(addr); return 0; } -- 2.25.1 _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel 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=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 D36CDC433E1 for ; Mon, 8 Jun 2020 23:27:03 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AD5D02078D for ; Mon, 8 Jun 2020 23:27:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="YESvg+MI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD5D02078D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2D66D6E9C6; Mon, 8 Jun 2020 23:27:03 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id A4ADC6E9C6 for ; Mon, 8 Jun 2020 23:27:02 +0000 (UTC) Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 550082076C; Mon, 8 Jun 2020 23:26:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591658822; bh=qdhBTkWSruYERr5czNpZSvHSiCknLERt9978u8aW+uc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YESvg+MIMfgkqUL/bH1wsrZzijmhluJvjB/eWjA8QBj28pg8EJ+S4ZYYXCV9bnPWB Kb/HWtPxONhVA7LG9rdtm97w5Yk6silw6DnoN09PINOBXouV2FO2iX0Sd60S4kzf13 5Y6uuocgmVzErYFD8nUsF8aIf4W5vbxgU+xJUI/A= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 15/50] staging: android: ion: use vmap instead of vm_map_ram Date: Mon, 8 Jun 2020 19:26:05 -0400 Message-Id: <20200608232640.3370262-15-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608232640.3370262-1-sashal@kernel.org> References: <20200608232640.3370262-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Catalin Marinas , Peter Zijlstra , Daniel Vetter , Heiko Carstens , dri-devel@lists.freedesktop.org, Michael Kelley , Paul Mackerras , "K. Y. Srinivasan" , Will Deacon , Sasha Levin , Wei Liu , Stephen Hemminger , Christian Borntraeger , Christoph Hellwig , David Airlie , Gao Xiang , Laura Abbott , Nitin Gupta , devel@driverdev.osuosl.org, Vasily Gorbik , Haiyang Zhang , linaro-mm-sig@lists.linaro.org, Christophe Leroy , Greg Kroah-Hartman , Linus Torvalds , Minchan Kim , Sakari Ailus , Johannes Weiner , Andrew Morton , Robin Murphy Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Christoph Hellwig [ Upstream commit 5bf9917452112694b2c774465ee4dbe441c84b77 ] vm_map_ram can keep mappings around after the vm_unmap_ram. Using that with non-PAGE_KERNEL mappings can lead to all kinds of aliasing issues. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Acked-by: Greg Kroah-Hartman Acked-by: Peter Zijlstra (Intel) Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Daniel Vetter Cc: David Airlie Cc: Gao Xiang Cc: Haiyang Zhang Cc: Johannes Weiner Cc: "K. Y. Srinivasan" Cc: Laura Abbott Cc: Mark Rutland Cc: Michael Kelley Cc: Minchan Kim Cc: Nitin Gupta Cc: Robin Murphy Cc: Sakari Ailus Cc: Stephen Hemminger Cc: Sumit Semwal Cc: Wei Liu Cc: Benjamin Herrenschmidt Cc: Catalin Marinas Cc: Heiko Carstens Cc: Paul Mackerras Cc: Vasily Gorbik Cc: Will Deacon Link: http://lkml.kernel.org/r/20200414131348.444715-4-hch@lst.de Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- drivers/staging/android/ion/ion_heap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index c2a7cb95725b..4fc5de13582d 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -105,12 +105,12 @@ int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer, static int ion_heap_clear_pages(struct page **pages, int num, pgprot_t pgprot) { - void *addr = vm_map_ram(pages, num, -1, pgprot); + void *addr = vmap(pages, num, VM_MAP, pgprot); if (!addr) return -ENOMEM; memset(addr, 0, PAGE_SIZE * num); - vm_unmap_ram(addr, num); + vunmap(addr); return 0; } -- 2.25.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel