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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,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 D9938C433E2 for ; Mon, 7 Sep 2020 05:59:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A5ED20838 for ; Mon, 7 Sep 2020 05:59:32 +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="kc3xXJaL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726780AbgIGF6h (ORCPT ); Mon, 7 Sep 2020 01:58:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726722AbgIGF6h (ORCPT ); Mon, 7 Sep 2020 01:58:37 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FED4C061573; Sun, 6 Sep 2020 22:58:33 -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=ngzswZtKXcd2zI4NzevNwUNXyZikinlURXNEXQYjmEA=; b=kc3xXJaL3wBgnsWsgdPkruCI4F 5Bzt1jtrfRYSHnPUcOwtvUy4kW423EybGBpNesUtDCFWtY1gAlWT4phrHv7ZDpNQNVk4bwLVVpUwO EmQ+ygOWaxa1Uj3YpdfYLi9XrBgOcxdDXrmp0Ue1A2MGcwbiu2xsxDE2AtuMWffHOywtHal95rVoh o1OAOUQCml2MxRcbNl3u6X0ayMOrmd5KW9KYeaDhQpobGN8S5pTDazQzDxZ9hL3OIKW4rBZ4Zb+Pl PH44NUkMafM4iy/q7+ny8koTmnwj40z3KKmSJbVPeWaWAVWmMCa8zaLibo0BZ0hr9HRIE97Np7/ux iWDqAMhA==; Received: from [2001:4bb8:184:af1:e178:97b2:ac6b:4e16] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kFAAc-00034K-P9; Mon, 07 Sep 2020 05:58:27 +0000 From: Christoph Hellwig To: Paul Walmsley , Palmer Dabbelt , Arnd Bergmann , Alexander Viro Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: remove set_fs for riscv v2 Date: Mon, 7 Sep 2020 07:58:17 +0200 Message-Id: <20200907055825.1917151-1-hch@lst.de> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-arch-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org Hi all, this series converts riscv to the new set_fs less world and is on top of this branch: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/log/?h=base.set_fs The first four patches are general improvements and enablement for all nommu ports, and might make sense to merge through the above base branch. Changes since v1: - implement __get_user_fn and __put_user_fn for the UACCESS_MEMCPY case and remove the small constant size optimizations in raw_copy_from_user and raw_copy_to_user - reshuffle the patch order a little Diffstat arch/riscv/Kconfig | 2 arch/riscv/include/asm/thread_info.h | 6 - arch/riscv/include/asm/uaccess.h | 177 +++++++++++++++++------------------ arch/riscv/kernel/process.c | 1 arch/riscv/lib/Makefile | 2 include/asm-generic/uaccess.h | 109 +++++++++++++-------- include/linux/uaccess.h | 4 7 files changed, 166 insertions(+), 135 deletions(-)