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,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 6009CC47427 for ; Fri, 25 Sep 2020 04:52:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 22D1723119 for ; Fri, 25 Sep 2020 04:52:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="k9BJO212" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727176AbgIYEwD (ORCPT ); Fri, 25 Sep 2020 00:52:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49406 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727044AbgIYEwB (ORCPT ); Fri, 25 Sep 2020 00:52:01 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEA23C0613D5; Thu, 24 Sep 2020 21:52:00 -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=A+T/x3ppYi6QNsP2t+QiJ1AjmOgx9xWo2H6NAG0/aPM=; b=k9BJO212aIGjTM67lCOkTpCrht B20Wf2zjNYR87uLFP2BRrzt5cCrEk0KFpOMk3+io62CblpW7Y77IqzHPhNFZqwDnVNpJgjcOWkhrs Z8GRxpu7FjGxV+hNEbHeKyL912gkvTLvP4DBne8Te3c43Bttle2gfOVWfy6MwqIsof1MCTX4rxO24 Kx+lnKnrKhrsYvG/2XpbtSvE8DYXDyXxSwaM81JHTOVvJu9V5Jarcs/1LeXw6G549Mxci7m54zzCp f1etRanliNQK8rGzJ9PmD1VPBy0Rci2ZVjpscKDGnzDGoBasw11g0MfksMIslOR+W3JyKfkaf/KsM BhKY/8wQ==; Received: from p4fdb0c34.dip0.t-ipconnect.de ([79.219.12.52] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLfi0-0002pf-1s; Fri, 25 Sep 2020 04:51:48 +0000 From: Christoph Hellwig To: Alexander Viro Cc: Andrew Morton , Jens Axboe , Arnd Bergmann , David Howells , David Laight , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, io-uring@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org Subject: let import_iovec deal with compat_iovecs as well v4 Date: Fri, 25 Sep 2020 06:51:37 +0200 Message-Id: <20200925045146.1283714-1-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 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Hi Al, this series changes import_iovec to transparently deal with compat iovec structures, and then cleanups up a lot of code dupliation. Changes since v3: - fix up changed prototypes in compat.h as well Changes since v2: - revert the switch of the access process vm sysclls to iov_iter - refactor the import_iovec internals differently - switch aio to use __import_iovec Changes since v1: - improve a commit message - drop a pointless unlikely - drop the PF_FORCE_COMPAT flag - add a few more cleanups (including two from David Laight) Diffstat: arch/arm64/include/asm/unistd32.h | 10 arch/mips/kernel/syscalls/syscall_n32.tbl | 10 arch/mips/kernel/syscalls/syscall_o32.tbl | 10 arch/parisc/kernel/syscalls/syscall.tbl | 10 arch/powerpc/kernel/syscalls/syscall.tbl | 10 arch/s390/kernel/syscalls/syscall.tbl | 10 arch/sparc/kernel/syscalls/syscall.tbl | 10 arch/x86/entry/syscall_x32.c | 5 arch/x86/entry/syscalls/syscall_32.tbl | 10 arch/x86/entry/syscalls/syscall_64.tbl | 10 block/scsi_ioctl.c | 12 drivers/scsi/sg.c | 9 fs/aio.c | 38 -- fs/io_uring.c | 20 - fs/read_write.c | 362 +-------------------- fs/splice.c | 57 --- include/linux/compat.h | 24 - include/linux/fs.h | 11 include/linux/uio.h | 10 include/uapi/asm-generic/unistd.h | 12 lib/iov_iter.c | 161 +++++++-- mm/process_vm_access.c | 85 ---- net/compat.c | 4 security/keys/compat.c | 37 -- security/keys/internal.h | 5 security/keys/keyctl.c | 2 tools/include/uapi/asm-generic/unistd.h | 12 tools/perf/arch/powerpc/entry/syscalls/syscall.tbl | 10 tools/perf/arch/s390/entry/syscalls/syscall.tbl | 10 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 10 30 files changed, 280 insertions(+), 706 deletions(-)