From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f197.google.com (mail-pf0-f197.google.com [209.85.192.197]) by kanga.kvack.org (Postfix) with ESMTP id 2AC686B0038 for ; Mon, 9 Jan 2017 22:38:41 -0500 (EST) Received: by mail-pf0-f197.google.com with SMTP id 127so698734214pfg.5 for ; Mon, 09 Jan 2017 19:38:41 -0800 (PST) Received: from mail-pf0-x22f.google.com (mail-pf0-x22f.google.com. [2607:f8b0:400e:c00::22f]) by mx.google.com with ESMTPS id p61si627124plb.159.2017.01.09.19.38.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 09 Jan 2017 19:38:40 -0800 (PST) Received: by mail-pf0-x22f.google.com with SMTP id y143so17986677pfb.0 for ; Mon, 09 Jan 2017 19:38:40 -0800 (PST) Date: Mon, 9 Jan 2017 19:38:31 -0800 (PST) From: Hugh Dickins Subject: Re: [patch] mm, thp: add new background defrag option In-Reply-To: Message-ID: References: <20170105101330.bvhuglbbeudubgqb@techsingularity.net> <558ce85c-4cb4-8e56-6041-fc4bce2ee27f@suse.cz> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: David Rientjes Cc: Vlastimil Babka , Mel Gorman , Andrew Morton , Michal Hocko , Jonathan Corbet , "Kirill A. Shutemov" , linux-kernel@vger.kernel.org, linux-mm@kvack.org On Mon, 9 Jan 2017, David Rientjes wrote: > On Mon, 9 Jan 2017, Vlastimil Babka wrote: > > > > Any suggestions for a better name for "background" are more than welcome. > > > > Why not just "madvise+defer"? > > > > Seeing no other activity regarding this issue (omg!), I'll wait a day or > so to see if there are any objections to "madvise+defer" or suggestions > that may be better and repost. I get very confused by the /sys/kernel/mm/transparent_hugepage/defrag versus enabled flags, and this may be a terrible, even more confusing, idea: but I've been surprised and sad to see defrag with a "defer" option, but poor enabled without one; and it has crossed my mind that perhaps the peculiar "madvise+defer" syntax in defrag might rather be handled by "madvise" in defrag with "defer" in enabled? Or something like that: 4 x 4 possibilities instead of 5 x 3. Please be gentle with me, Hugh -- 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