From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758675Ab2IKVg7 (ORCPT ); Tue, 11 Sep 2012 17:36:59 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:48474 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757768Ab2IKVg5 (ORCPT ); Tue, 11 Sep 2012 17:36:57 -0400 From: Michal Nazarewicz To: Minchan Kim Cc: Kamezawa Hiroyuki , Yasuaki Ishimatsu , Andrew Morton , Bartlomiej Zolnierkiewicz , Mel Gorman , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mel Gorman , Konrad Rzeszutek Wilk Subject: Re: [RFC] memory-hotplug: remove MIGRATE_ISOLATE from free_area->free_list In-Reply-To: <20120911010336.GC14205@bbox> Organization: http://mina86.com/ References: <1346830033-32069-1-git-send-email-minchan@kernel.org> <20120906020850.GA31615@bbox> <20120911010336.GC14205@bbox> User-Agent: Notmuch/0.14+22~g8bdc16b (http://notmuchmail.org) Emacs/24.2.50.1 (x86_64-unknown-linux-gnu) X-Face: PbkBB1w#)bOqd`iCe"Ds{e+!C7`pkC9a|f)Qo^BMQvy\q5x3?vDQJeN(DS?|-^$uMti[3D*#^_Ts"pU$jBQLq~Ud6iNwAw_r_o_4]|JO?]}P_}Nc&"p#D(ZgUb4uCNPe7~a[DbPG0T~!&c.y$Ur,=N4RT>]dNpd;KFrfMCylc}gc??'U2j,!8%xdD Face: 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 X-PGP: 50751FF4 X-PGP-FP: AC1F 5F5C D418 88F8 CC84 5858 2060 4012 5075 1FF4 Date: Tue, 11 Sep 2012 23:36:48 +0200 Message-ID: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Tue, Sep 11 2012, Minchan Kim wrote: > I saw two bug report about MIGRATE_ISOALTE type and NR_FREE_PAGES account= ing > mistmatch problem until now and I think we can meet more problems > in the near future without solving it. > > Maybe, [1] would be a solution but I really don't like to add new branch > in hotpath, even MIGRATE_ISOLATE used very rarely. > so, my patch is inpired. If there is another good idea that avoid > new branch in hotpath and solve the fundamental problem, I will drop this > patch. > > [1] http://permalink.gmane.org/gmane.linux.kernel.mm/85199. Well... I am still not convinced. Than again you clearly have put some thought into it and, more importantly, I'm not the one deciding whether this gets merged or not, anyway. ;) --=20 Best regards, _ _ .o. | Liege of Serenely Enlightened Majesty of o' \,=3D./ `o ..o | Computer Science, Micha=C5=82 =E2=80=9Cmina86=E2=80=9D Nazarewicz = (o o) ooo +------------------ooO--(_)--Ooo-- --=-=-= Content-Type: multipart/signed; boundary="==-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" --==-=-= Content-Type: text/plain --==-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAEBAgAGBQJQT67wAAoJECBgQBJQdR/0+cIQAIE1nwegXCV6WY+kBW/I6o16 07xXNU1XkGZhB37+6ysSWP4fJvj+8vUZXSgM9v1+5SK8KpvMLk+vL7QcRh3vyGBJ PG7hQSBnjgjl6HF6pDTQugXrH9/CwqBsxb8QUGklZXUBCZPm0wj1oxkWlGVRrVRX I8evcHOuu8KsfMsPsptRoTBCN/hM9sHmOiBrYn1/+YwiyB0x0v7jp5PJvvHbgcF4 /Rf4JUF8P0YXLed5ru8Ux/uUuHnGa0OOWpxPB9d1KoKZleduvZrn51hl95mNR8mn yNBl186ExrAfvJUgKmuthQqQx+E/fOHeC6vSBDlsq6bV0MNP8TTpcSNrhbugG6K+ j8oKlk8uEq2fFFDf6pzVOn/Zt0phiiHp2U5UylGQgdsMQnFc1E6xGd1/1o4x2e6M Al0MLsdeK8OXDIFTwfjSgLXeQUVp6pNs5zhixNzpHkDVRd01WL6XoW9HJscbxfQi RxBvUhqBzKIEOndC2pGodnuMWUouD5CKy05SucKLxqAGhQGzp24/f80p37+ujW2f /dUsIS78VYRNyEc06zWh+GSArmE6NEsm//Uj9c208a4PJfTtM5iN92Jcx7KPKK0X OhycJTHr8Mx+02he0aAuGpLp2UgNaiObSThJq2/9MsqDNaprVHuaVgKoO0WTmPl+ okzgHxzvxJM8SApJoDwP =NV0O -----END PGP SIGNATURE----- --==-=-=-- --=-=-=--