From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751330AbbCSBdk (ORCPT ); Wed, 18 Mar 2015 21:33:40 -0400 Received: from mail.kernel.org ([198.145.29.136]:52167 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750729AbbCSBdi (ORCPT ); Wed, 18 Mar 2015 21:33:38 -0400 From: Andy Lutomirski To: x86@kernel.org, linux-kernel@vger.kernel.org Cc: Brad Spengler , Denys Vlasenko , Andy Lutomirski Subject: [PATCH 0/9] user_mode_vm removal and associated cleanups Date: Wed, 18 Mar 2015 18:33:26 -0700 Message-Id: X-Mailer: git-send-email 2.3.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all- The user_mode vs user_mode_vm distinction scares me. Let's fix it. This series adds user_mode_ignore_vm86, makes user_mode reliable, and removes user_mode_vm. It also tidies up a couple warts I found along the way. This survives basic testing, but I haven't tried that hard to test it. Thoughts? Ingo, this may conflict a bit with the do_debug and do_bounds fixes. Andy Lutomirski (9): x86, fault: Use TASK_SIZE_MAX in is_prefetch x86, perf: Fix incorrect TIF_IA32 check in code_segment_base x86: Add user_mode_ignore_vm86 x86, perf: Explicitly optimize vm86 handling in code_segment_base x86, traps: Use user_mode_ignore_vm86 where appropriate x86: Make user_mode work correctly if regs came from vm86 mode x86, treewide: s/user_mode_vm/user_mode/g x86: Remove user_mode_vm x86, traps: Replace some open-coded vm86 checks with v8086_mode arch/x86/include/asm/ptrace.h | 33 +++++++++++++++++++++------------ arch/x86/kernel/alternative.c | 2 +- arch/x86/kernel/cpu/perf_event.c | 20 ++++++++++---------- arch/x86/kernel/crash.c | 2 +- arch/x86/kernel/dumpstack.c | 4 ++-- arch/x86/kernel/dumpstack_32.c | 4 ++-- arch/x86/kernel/i387.c | 2 +- arch/x86/kernel/irq_32.c | 2 +- arch/x86/kernel/irq_64.c | 2 +- arch/x86/kernel/kgdb.c | 4 ++-- arch/x86/kernel/kprobes/core.c | 4 ++-- arch/x86/kernel/process_32.c | 2 +- arch/x86/kernel/ptrace.c | 2 +- arch/x86/kernel/time.c | 2 +- arch/x86/kernel/traps.c | 29 +++++++++++++---------------- arch/x86/kernel/uprobes.c | 2 +- arch/x86/mm/fault.c | 8 ++++---- arch/x86/oprofile/backtrace.c | 2 +- drivers/misc/sgi-xp/xpc_main.c | 2 +- 19 files changed, 67 insertions(+), 61 deletions(-) -- 2.3.0