From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-f71.google.com (mail-ed1-f71.google.com [209.85.208.71]) by kanga.kvack.org (Postfix) with ESMTP id 6D23D8E0001 for ; Mon, 17 Dec 2018 08:50:38 -0500 (EST) Received: by mail-ed1-f71.google.com with SMTP id c53so8895948edc.9 for ; Mon, 17 Dec 2018 05:50:38 -0800 (PST) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id u12si252195edd.379.2018.12.17.05.50.36 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Dec 2018 05:50:37 -0800 (PST) Subject: Re: [PATCH 03/14] mm, compaction: Remove last_migrated_pfn from compact_control References: <20181214230310.572-1-mgorman@techsingularity.net> <20181214230310.572-4-mgorman@techsingularity.net> From: Vlastimil Babka Message-ID: <76f7182b-5521-2ee9-fa6f-4331e1eae313@suse.cz> Date: Mon, 17 Dec 2018 14:50:35 +0100 MIME-Version: 1.0 In-Reply-To: <20181214230310.572-4-mgorman@techsingularity.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman , Linux-MM Cc: David Rientjes , Andrea Arcangeli , Linus Torvalds , Michal Hocko , ying.huang@intel.com, kirill@shutemov.name, Andrew Morton , Linux List Kernel Mailing On 12/15/18 12:02 AM, Mel Gorman wrote: > The last_migrated_pfn field is a bit dubious as to whether it really helps > but either way, the information from it can be inferred without increasing > the size of compact_control so remove the field. Yeah looks like this won't cause more frequent drains. > Signed-off-by: Mel Gorman Acked-by: Vlastimil Babka