From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756664AbeDZPKJ (ORCPT ); Thu, 26 Apr 2018 11:10:09 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:44188 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756511AbeDZPKI (ORCPT ); Thu, 26 Apr 2018 11:10:08 -0400 Date: Thu, 26 Apr 2018 17:10:03 +0200 From: Oleg Nesterov To: Kirill Tkhai Cc: Michal Hocko , akpm@linux-foundation.org, peterz@infradead.org, viro@zeniv.linux.org.uk, mingo@kernel.org, paulmck@linux.vnet.ibm.com, keescook@chromium.org, riel@redhat.com, tglx@linutronix.de, kirill.shutemov@linux.intel.com, marcos.souza.org@gmail.com, hoeun.ryu@gmail.com, pasha.tatashin@oracle.com, gs051095@gmail.com, ebiederm@xmission.com, dhowells@redhat.com, rppt@linux.vnet.ibm.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] exit: Make unlikely case in mm_update_next_owner() more scalable Message-ID: <20180426151002.GB14818@redhat.com> References: <152473763015.29458.1131542311542381803.stgit@localhost.localdomain> <20180426130700.GP17484@dhcp22.suse.cz> <9122972b-9a5b-db65-f145-585d6076b2ed@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9122972b-9a5b-db65-f145-585d6076b2ed@virtuozzo.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/26, Kirill Tkhai wrote: > > We can rework this simply by adding a list of tasks to mm. Perhaps, but then I think this list should not depend on mm->owner. I mean, mm->list_of_group_leaders_which_use_this_mm can be used by coredump and oom-killer at least. But this is not that simple... Oleg.