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=-6.3 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 3CE7AC433E1 for ; Tue, 25 Aug 2020 15:44:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 07DE320782 for ; Tue, 25 Aug 2020 15:44:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="SC/GsWxY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726619AbgHYPo0 (ORCPT ); Tue, 25 Aug 2020 11:44:26 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:49023 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726938AbgHYPoX (ORCPT ); Tue, 25 Aug 2020 11:44:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1598370259; 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=CZRaT4/1v5rcK6uBWShBNZ1mDYfCi2rVf7HvsIeOBAY=; b=SC/GsWxYwCDroG4PZyXp7sIl8D8begNwwNeW3opOYmqWif5ZxFGQe+FLDhqvbSCkg1avA4 y6RTmQRW7ii7jNHgx4hAOcEBg2MhC0B8ARUvHXWVIN6lxKeLHAwrTeyQ6rkl23eoVUKUpI TBtNJRAVRuHeuMIbO+A5oTdHo0vkTY4= 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-528-cL8SAhWDOX-o6j3mbwXjmg-1; Tue, 25 Aug 2020 11:44:14 -0400 X-MC-Unique: cL8SAhWDOX-o6j3mbwXjmg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AF6291084C95; Tue, 25 Aug 2020 15:44:11 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.40.194.8]) by smtp.corp.redhat.com (Postfix) with SMTP id 5AE091944D; Tue, 25 Aug 2020 15:44:02 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Tue, 25 Aug 2020 17:44:11 +0200 (CEST) Date: Tue, 25 Aug 2020 17:44:01 +0200 From: Oleg Nesterov To: Michal Hocko Cc: Suren Baghdasaryan , christian.brauner@ubuntu.com, mingo@kernel.org, peterz@infradead.org, tglx@linutronix.de, esyr@redhat.com, christian@kellner.me, areber@redhat.com, shakeelb@google.com, cyphar@cyphar.com, adobriyan@gmail.com, akpm@linux-foundation.org, ebiederm@xmission.com, gladkov.alexey@gmail.com, walken@google.com, daniel.m.jordan@oracle.com, avagin@gmail.com, bernd.edlinger@hotmail.de, john.johansen@canonical.com, laoar.shao@gmail.com, timmurray@google.com, minchan@kernel.org, kernel-team@android.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, stable@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v2 1/1] mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary Message-ID: <20200825154400.GC28468@redhat.com> References: <20200824153036.3201505-1-surenb@google.com> <20200825150516.GJ22869@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200825150516.GJ22869@dhcp22.suse.cz> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 08/25, Michal Hocko wrote: > > Btw. now that the flag is in place we can optimize __oom_kill_process as > well. and zap_threads(). Oleg.