From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757656AbaKTSeE (ORCPT ); Thu, 20 Nov 2014 13:34:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42999 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755664AbaKTSeB (ORCPT ); Thu, 20 Nov 2014 13:34:01 -0500 Date: Thu, 20 Nov 2014 19:34:00 +0100 From: Oleg Nesterov To: Andrew Morton Cc: Aaron Tomlin , Alexey Dobriyan , "Eric W. Biederman" , Sterling Alexander , linux-kernel@vger.kernel.org Subject: [PATCH 0/3] exit: avoid O(n ** 2) thread-list scan on group-exit if possible Message-ID: <20141120183400.GA9622@redhat.com> References: <20141107201424.GA22209@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141107201424.GA22209@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/18, Oleg Nesterov wrote: > > but I found other bugs in this area. Fix them first. This is also > preparation for the next changes in exit_notify() paths. Finally the optimization I had in mind from the very beginning. Probably this is not the last series... in particular it seems that we have some problems with sys_setns() in this area, but I need to recheck. Plus more cleanups/microoptimizations. Oleg. kernel/exit.c | 50 +++++++++++++++++++++++++------------------------- 1 files changed, 25 insertions(+), 25 deletions(-)