From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id 2DAF7C433EF
	for <linux-kernel@archiver.kernel.org>; Thu,  5 May 2022 12:51:09 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1378156AbiEEMyp (ORCPT
        <rfc822;linux-kernel@archiver.kernel.org>);
        Thu, 5 May 2022 08:54:45 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60716 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1377827AbiEEMyO (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 5 May 2022 08:54:14 -0400
Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 220FC527CF;
        Thu,  5 May 2022 05:50:34 -0700 (PDT)
Date:   Thu, 5 May 2022 14:50:31 +0200
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020; t=1651755032;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=FLqE2JkFG6wskvkAF74RyMbEOiLynryLGT+inUSn7EA=;
        b=3xp7O05OJNSxkbSR+9rQkTEF7CPouvJjOfPZM54VIo2k364AuWFNmO8OKNfPNKeIovxt6G
        E67NYpC7+c+e88q7DAlFINhhg+TWgproY/2VKvIWJ/rQj6lYKkKXGIkRiUEIUh9rcg0L93
        S38ZDBoGoqx7lzEhN/e3upw3cokfeN2+NWZLjndXSFXsBcmHfENnhwlqGLij/H2tqnirbz
        +M+RZ0qtyPDwqhzCaIcIl0h0BQsTEbwdOwJY+3pVzBWQIpxPgww8MhNtSaTUqIYVGPj187
        tcWFT7vizHDSNmjGcHgvQZuPg1y6WcNyIdgAjFLM0tgME7/kMaeez/a/GD/9JA==
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020e; t=1651755032;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=FLqE2JkFG6wskvkAF74RyMbEOiLynryLGT+inUSn7EA=;
        b=TPhpV6m2xTtkLaiPVVKbbScuDeSevE2Fbi+jxi7o95ROlDs4TtcmSSI3o+GZ87UnDDPR3T
        j1P/gCiVWNqV+fAQ==
From:   Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To:     "Eric W. Biederman" <ebiederm@xmission.com>
Cc:     linux-kernel@vger.kernel.org, rjw@rjwysocki.net,
        Oleg Nesterov <oleg@redhat.com>, mingo@kernel.org,
        vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
        rostedt@goodmis.org, mgorman@suse.de,
        Will Deacon <will@kernel.org>, tj@kernel.org,
        linux-pm@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
        Richard Weinberger <richard@nod.at>,
        Anton Ivanov <anton.ivanov@cambridgegreys.com>,
        Johannes Berg <johannes@sipsolutions.net>,
        linux-um@lists.infradead.org, Chris Zankel <chris@zankel.net>,
        Max Filippov <jcmvbkbc@gmail.com>,
        linux-xtensa@linux-xtensa.org, Kees Cook <keescook@chromium.org>,
        Jann Horn <jannh@google.com>, linux-ia64@vger.kernel.org
Subject: Re: [PATCH v3 09/11] ptrace: Don't change __state
Message-ID: <YnPIF9DvM9L0k+0U@linutronix.de>
References: <87k0b0apne.fsf_-_@email.froward.int.ebiederm.org>
 <20220504224058.476193-9-ebiederm@xmission.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <20220504224058.476193-9-ebiederm@xmission.com>
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 2022-05-04 17:40:56 [-0500], Eric W. Biederman wrote:
> Stop playing with tsk->__state to remove TASK_WAKEKILL while a ptrace
> command is executing.
> 
> Instead remove TASK_WAKEKILL from the definition of TASK_TRACED, and
> implemention a new jobctl flag TASK_PTRACE_FROZEN.  This new flag is
implement ?

> set in jobctl_freeze_task and cleared when ptrace_stop is awoken or in
> jobctl_unfreeze_task (when ptrace_stop remains asleep).

Sebastian