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=-5.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 F1ED5C4363C for ; Fri, 2 Oct 2020 15:39:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF83021789 for ; Fri, 2 Oct 2020 15:39:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="AX12vbY1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726176AbgJBPi7 (ORCPT ); Fri, 2 Oct 2020 11:38:59 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:45503 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388068AbgJBPi7 (ORCPT ); Fri, 2 Oct 2020 11:38:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1601653138; 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=36FCS78Qd5VasTsIOB0fmeKmJgKsqjwU3OSxRwKzeNc=; b=AX12vbY19fYeNjHZqer5g5hpR1vce2fxWru1K+Lvd5dYBpW/nhpIQpKFnznAIu1d2k7sQO tQXdGcqDlPTH2uqgTQIZc/wOlhJlMFby1WRTrZrwigo3CUf++/dq/fC9y9QKLXwOMnBYkX zypkWSJGlrlklwHWQ+feNW64KQiVT/Q= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-463-7ZgihHfHOYG4JvHuV0Pt6g-1; Fri, 02 Oct 2020 11:38:54 -0400 X-MC-Unique: 7ZgihHfHOYG4JvHuV0Pt6g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 233098030CE; Fri, 2 Oct 2020 15:38:53 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.40.192.246]) by smtp.corp.redhat.com (Postfix) with SMTP id 9C5E573678; Fri, 2 Oct 2020 15:38:51 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Fri, 2 Oct 2020 17:38:52 +0200 (CEST) Date: Fri, 2 Oct 2020 17:38:50 +0200 From: Oleg Nesterov To: Thomas Gleixner Cc: Jens Axboe , linux-kernel@vger.kernel.org, io-uring@vger.kernel.org, peterz@infradead.org Subject: Re: [PATCH 3/3] task_work: use TIF_TASKWORK if available Message-ID: <20201002153849.GC29066@redhat.com> References: <20201001194208.1153522-1-axboe@kernel.dk> <20201001194208.1153522-4-axboe@kernel.dk> <20201002151415.GA29066@redhat.com> <871rigejb8.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <871rigejb8.fsf@nanos.tec.linutronix.de> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 10/02, Thomas Gleixner wrote: > > I think it's fundamentaly wrong that we have several places and several > flags which handle task_work_run() instead of having exactly one place > and one flag. Damn yes, agreed. Oleg.