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=-2.4 required=3.0 tests=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 5744EC83000 for ; Tue, 28 Apr 2020 18:05:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38083208E0 for ; Tue, 28 Apr 2020 18:05:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OSkb/6UX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728578AbgD1SFv (ORCPT ); Tue, 28 Apr 2020 14:05:51 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:47218 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728313AbgD1SFv (ORCPT ); Tue, 28 Apr 2020 14:05:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588097150; 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=LuQ1QRx1zxKaFisNAhvu4KiUYVW6FXy89qzAIYTurio=; b=OSkb/6UXrzV7dPK5+Wb9Sc/GpuHw1/su+f25OreN8+ymJT7/BZ8ryGSgvHYmq2xA9xyEJu sEKjmmK8/LejAIMXrir/v0YdstDr+b/UZ6k0QUmej6Fmc46xGaMWqaXoiPE8pwcjL6CttD nfzrA0De4Wv3sAA7PLSSYKOA5cYJFqQ= 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-201-_wnZ237vOZiNnM2Ufq9ccg-1; Tue, 28 Apr 2020 14:05:46 -0400 X-MC-Unique: _wnZ237vOZiNnM2Ufq9ccg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 98B4D468; Tue, 28 Apr 2020 18:05:44 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.40.192.231]) by smtp.corp.redhat.com (Postfix) with SMTP id 0A2E65C1D4; Tue, 28 Apr 2020 18:05:41 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Tue, 28 Apr 2020 20:05:44 +0200 (CEST) Date: Tue, 28 Apr 2020 20:05:41 +0200 From: Oleg Nesterov To: "Eric W. Biederman" Cc: Linus Torvalds , LKML , Linux FS Devel , Alexey Dobriyan , Alexey Gladkov , Andrew Morton , Alexey Gladkov , Thomas Gleixner , "Paul E. McKenney" Subject: Re: [PATCH v4 0/2] proc: Ensure we see the exit of each process tid exactly Message-ID: <20200428180540.GB29960@redhat.com> References: <20200419141057.621356-1-gladkov.alexey@gmail.com> <87ftcv1nqe.fsf@x220.int.ebiederm.org> <87wo66vvnm.fsf_-_@x220.int.ebiederm.org> <20200424173927.GB26802@redhat.com> <87mu6ymkea.fsf_-_@x220.int.ebiederm.org> <875zdmmj4y.fsf_-_@x220.int.ebiederm.org> <878sihgfzh.fsf@x220.int.ebiederm.org> <87sggnajpv.fsf_-_@x220.int.ebiederm.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87sggnajpv.fsf_-_@x220.int.ebiederm.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 04/28, Eric W. Biederman wrote: > > In short I don't think this change will introduce any regressions. > > Eric W. Biederman (2): > rculist: Add hlists_swap_heads_rcu > proc: Ensure we see the exit of each process tid exactly once Eric, sorry, I got lost. Both changes look good to me, feel free to add my ack, but I presume this is on top of next_tgid/lookup_task changes ? If yes, why did not you remove has_group_leader_pid? Oleg.