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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 98DE6C433E0 for ; Tue, 9 Mar 2021 21:22:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5926E65259 for ; Tue, 9 Mar 2021 21:22:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231864AbhCIVWS (ORCPT ); Tue, 9 Mar 2021 16:22:18 -0500 Received: from mga12.intel.com ([192.55.52.136]:18988 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230173AbhCIVVu (ORCPT ); Tue, 9 Mar 2021 16:21:50 -0500 IronPort-SDR: ZCkBKzL6/4Gh58jkLjZ2nEFTBZNTKNmh68Bo/RFlgQtimiAnq8XQzdD7e3ZTWmfqrszBdqKLfA TXowhzDCuDSQ== X-IronPort-AV: E=McAfee;i="6000,8403,9917"; a="167597023" X-IronPort-AV: E=Sophos;i="5.81,236,1610438400"; d="scan'208";a="167597023" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2021 13:21:48 -0800 IronPort-SDR: f5gFzJRA3Q243esLlPA/Y3Tdx/L/Tuyzj16PiDwlgENALpXu2RUhoeX7/rnoHk3hI9nK5yoo5O L7zU4V21G10A== X-IronPort-AV: E=Sophos;i="5.81,236,1610438400"; d="scan'208";a="386373791" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2021 13:21:47 -0800 From: ira.weiny@intel.com To: Andrew Morton Cc: Ira Weiny , David Sterba , Chris Mason , Josef Bacik , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/3] btrfs: Convert kmap/memset/kunmap to memzero_user() Date: Tue, 9 Mar 2021 13:21:34 -0800 Message-Id: <20210309212137.2610186-1-ira.weiny@intel.com> X-Mailer: git-send-email 2.28.0.rc0.12.gb6a658bd00c9 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Ira Weiny Previously this was submitted to convert to zero_user()[1]. zero_user() is not the same as memzero_user() and in fact some zero_user() calls may be better off as memzero_user(). Regardless it was incorrect to convert btrfs to zero_user(). This series corrects this by lifting memzero_user(), converting it to kmap_local_page(), and then using it in btrfs. Thanks, Ira [1] https://lore.kernel.org/lkml/20210223192506.GY3014244@iweiny-DESK2.sc.intel.com/ Ira Weiny (3): iov_iter: Lift memzero_page() to highmem.h mm/highmem: Convert memzero_page() to kmap_local_page() btrfs: Use memzero_page() instead of open coded kmap pattern fs/btrfs/compression.c | 5 +---- fs/btrfs/extent_io.c | 22 ++++------------------ fs/btrfs/inode.c | 33 ++++++++++----------------------- fs/btrfs/reflink.c | 6 +----- fs/btrfs/zlib.c | 5 +---- fs/btrfs/zstd.c | 5 +---- include/linux/highmem.h | 7 +++++++ lib/iov_iter.c | 8 +------- 8 files changed, 26 insertions(+), 65 deletions(-) -- 2.28.0.rc0.12.gb6a658bd00c9