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=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 8DEB3C46466 for ; Sat, 3 Oct 2020 02:55:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35A90206FA for ; Sat, 3 Oct 2020 02:55:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="QodbkNJo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725835AbgJCCzj (ORCPT ); Fri, 2 Oct 2020 22:55:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725772AbgJCCzi (ORCPT ); Fri, 2 Oct 2020 22:55:38 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 294B6C0613D0 for ; Fri, 2 Oct 2020 19:55:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=DGR+5R6KgnX3F5fS1JsEMAGQ6hwXUzIviFihF5AfRt4=; b=QodbkNJoF+o7m4DH+7zQOnsc3V CinUa4Aq6fzGJhKwBL9avCB9dkr5E0NOcHxK0yjNSDHRcY1rcydapCgZn4LNaWRAUTUDFLavoKAzB wuLBy/6SQBS/DgRnMzGY2eT5aOPjgFVR54x82ihRAZ/xs+N9NFNJcbmz/GbFItyRq3HWOxp2eJg0A e/Livk+61ww/PN0yfXsrzI/0YJqJV3pr+SEsghsX94dIR01aOEI5jTRpIDo63nUwL0GbQaOq/W8hO V3LTlivmUom/2h5O+CZcJZfC/H0AVQnm+x4Oi0DlwbP0r9o0as8BnRd6x1JjaoLERBH23+AQ90WP/ vWmvqGcg==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOXhv-0005UV-Lp; Sat, 03 Oct 2020 02:55:35 +0000 From: "Matthew Wilcox (Oracle)" To: Al Viro Cc: "Matthew Wilcox (Oracle)" , Christoph Hellwig , linux-fsdevel@vger.kernel.org Subject: [PATCH 00/13] Clean up kernel_read/kernel_write Date: Sat, 3 Oct 2020 03:55:21 +0100 Message-Id: <20201003025534.21045-1-willy@infradead.org> X-Mailer: git-send-email 2.21.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Linus asked that NULL pos be allowed to kernel_write() / kernel_read(). This set of patches (against Al's for-next tree) does that in the first two patches, and then converts many of the users of kernel_write() / kernel_read() to use a NULL pointer. I test-compiled as many as I could. Matthew Wilcox (Oracle) (13): fs: Allow a NULL pos pointer to __kernel_write fs: Allow a NULL pos pointer to __kernel_read fs/acct: Pass a NULL pointer to __kernel_write um/mconsole: Pass a NULL pointer to kernel_read x86/aout: Pass a NULL pointer to kernel_read aout: Pass a NULL pointer to kernel_read binfmt_flat: Pass a NULL pointer to kernel_read exec: Pass a NULL pointer to kernel_read bpfilter: Pass a NULL pointer to kernel_read and kernel_write keys: Pass a NULL pointer to kernel_read and kernel_write target: Pass a NULL pointer to kernel_write proc: Pass a NULL pointer to kernel_write usermode: Pass a NULL pointer to kernel_write arch/um/drivers/mconsole_kern.c | 3 +-- arch/x86/ia32/ia32_aout.c | 3 +-- drivers/target/target_core_alua.c | 3 +-- drivers/target/target_core_pr.c | 3 +-- fs/binfmt_aout.c | 3 +-- fs/binfmt_flat.c | 3 +-- fs/exec.c | 4 +--- fs/proc/proc_sysctl.c | 3 +-- fs/read_write.c | 10 ++++++---- kernel/acct.c | 4 +--- kernel/usermode_driver.c | 3 +-- net/bpfilter/bpfilter_kern.c | 7 ++----- security/keys/big_key.c | 7 ++----- 13 files changed, 20 insertions(+), 36 deletions(-) -- 2.28.0