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=-12.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 C1AD5C43441 for ; Mon, 12 Nov 2018 06:01:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 93A4F21722 for ; Mon, 12 Nov 2018 06:01:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 93A4F21722 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731728AbeKLPxa (ORCPT ); Mon, 12 Nov 2018 10:53:30 -0500 Received: from terminus.zytor.com ([198.137.202.136]:53753 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731226AbeKLPxa (ORCPT ); Mon, 12 Nov 2018 10:53:30 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wAC60xc03546552 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 11 Nov 2018 22:00:59 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wAC60xS53546549; Sun, 11 Nov 2018 22:00:59 -0800 Date: Sun, 11 Nov 2018 22:00:59 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Elvira Khabirova Message-ID: Cc: linux-kernel@vger.kernel.org, lineprinter@altlinux.org, hpa@zytor.com, torvalds@linux-foundation.org, mingo@kernel.org, tglx@linutronix.de, bp@alien8.de, peterz@infradead.org Reply-To: lineprinter@altlinux.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@kernel.org, torvalds@linux-foundation.org, hpa@zytor.com, bp@alien8.de, peterz@infradead.org In-Reply-To: <20181110042209.26333972@akathisia> References: <20181110042209.26333972@akathisia> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/urgent] x86/ptrace: Fix documentation for tracehook_report_syscall_entry() Git-Commit-ID: d19f9130b814d33c03118493c17454f7d90075d1 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: d19f9130b814d33c03118493c17454f7d90075d1 Gitweb: https://git.kernel.org/tip/d19f9130b814d33c03118493c17454f7d90075d1 Author: Elvira Khabirova AuthorDate: Sat, 10 Nov 2018 04:22:09 +0100 Committer: Ingo Molnar CommitDate: Mon, 12 Nov 2018 04:53:27 +0100 x86/ptrace: Fix documentation for tracehook_report_syscall_entry() tracehook_report_syscall_entry() is called not only if %TIF_SYSCALL_TRACE is set, but also if %TIF_SYSCALL_EMU is set, as appears from x86's entry code. Signed-off-by: Elvira Khabirova Cc: Borislav Petkov Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: ldv@altlinux.org Cc: oleg@redhat.com Cc: rostedt@goodmis.org Link: http://lkml.kernel.org/r/20181110042209.26333972@akathisia Signed-off-by: Ingo Molnar --- include/linux/tracehook.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h index 40b0b4c1bf7b..df20f8bdbfa3 100644 --- a/include/linux/tracehook.h +++ b/include/linux/tracehook.h @@ -83,8 +83,8 @@ static inline int ptrace_report_syscall(struct pt_regs *regs) * tracehook_report_syscall_entry - task is about to attempt a system call * @regs: user register state of current task * - * This will be called if %TIF_SYSCALL_TRACE has been set, when the - * current task has just entered the kernel for a system call. + * This will be called if %TIF_SYSCALL_TRACE or %TIF_SYSCALL_EMU have been set, + * when the current task has just entered the kernel for a system call. * Full user register state is available here. Changing the values * in @regs can affect the system call number and arguments to be tried. * It is safe to block here, preventing the system call from beginning.