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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 F09C8C2D0F8 for ; Wed, 13 May 2020 06:57:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA10320708 for ; Wed, 13 May 2020 06:57:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="i1/ludAP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729796AbgEMG5B (ORCPT ); Wed, 13 May 2020 02:57:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726020AbgEMG5B (ORCPT ); Wed, 13 May 2020 02:57:01 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13D21C061A0C; Tue, 12 May 2020 23:57:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=OLeobDoK3cSodaOvhpXxRj41TUTb5dB2QsKr9Upwg1E=; b=i1/ludAPWoPD/7vlde8gjhEzPJ UGpXQOfEoZkrNj9JE/Ed2qP6j0F8Bbjow7TLTPtSKLCqrpC4f+aTZ4XxAVx7cuYtIKUePo5rGioan z7b0OchS8Hy+kmEu21uQKNW/fkcHVYsbs+P8rwVysWEhVCsOCaon18JuGLVyh37/DpeyR0hn0Y4Gr yG4rDV6dh+anzTzDpAyv3yIogor/Apc3ZZ/Jc9qxVAbdZQ4GssWNqx+hlDWjkAK1mI4fB6EWTIBXD iBh5VBO//ZcgP6tfERldIMAZdp+RndLNQ4zILLtdvnkosb2pHc+0ykuyQ/sHsL6WfYjriTRqNqc42 tl+YxUQQ==; Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYlK6-0003UK-6h; Wed, 13 May 2020 06:56:58 +0000 From: Christoph Hellwig To: Al Viro Cc: Ian Kent , David Howells , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org, netfilter-devel@vger.kernel.org Subject: clean up kernel_{read,write} & friends v2 Date: Wed, 13 May 2020 08:56:42 +0200 Message-Id: <20200513065656.2110441-1-hch@lst.de> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: Hi Al, this series fixes a few issues and cleans up the helpers that read from or write to kernel space buffers, and ensures that we don't change the address limit if we are using the ->read_iter and ->write_iter methods that don't need the changed address limit. Changes since v1: - __kernel_write must not take sb_writers - unexported __kernel_write