From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-f169.google.com (mail-ie0-f169.google.com [209.85.223.169]) by kanga.kvack.org (Postfix) with ESMTP id EC9056B0032 for ; Thu, 11 Jun 2015 17:56:28 -0400 (EDT) Received: by iebmu5 with SMTP id mu5so13145500ieb.1 for ; Thu, 11 Jun 2015 14:56:28 -0700 (PDT) Received: from mail-ig0-x244.google.com (mail-ig0-x244.google.com. [2607:f8b0:4001:c05::244]) by mx.google.com with ESMTPS id p65si1512542iop.13.2015.06.11.14.56.28 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Jun 2015 14:56:28 -0700 (PDT) Received: by igdj8 with SMTP id j8so5084054igd.2 for ; Thu, 11 Jun 2015 14:56:28 -0700 (PDT) Message-ID: <1434059786.27504.58.camel@edumazet-glaptop2.roam.corp.google.com> Subject: Re: [RFC] net: use atomic allocation for order-3 page allocation From: Eric Dumazet Date: Thu, 11 Jun 2015 14:56:26 -0700 In-Reply-To: <20150611214525.GA406740@devbig257.prn2.facebook.com> References: <71a20cf185c485fa23d9347bd846a6f4e9753405.1434053941.git.shli@fb.com> <1434055687.27504.51.camel@edumazet-glaptop2.roam.corp.google.com> <5579FABE.4050505@fb.com> <1434057733.27504.52.camel@edumazet-glaptop2.roam.corp.google.com> <20150611214525.GA406740@devbig257.prn2.facebook.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Shaohua Li Cc: Chris Mason , netdev@vger.kernel.org, davem@davemloft.net, Kernel-team@fb.com, Eric Dumazet , David Rientjes , linux-mm@kvack.org On Thu, 2015-06-11 at 14:45 -0700, Shaohua Li wrote: > This is exactly what the patch try to do. Atomic 32k allocation will > fail with memory pressure, kswapd is waken up to do compaction and we > fallback to 4k. Read your changelog, then read what you just wrote. Your changelog said : 'compaction will not be triggered and we will fallback to order-0 immediately.' Now you tell me that compaction is started. What is the truth ? Please make sure changelog is precise, this would avoid many mails. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org