From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754002AbaETSPb (ORCPT ); Tue, 20 May 2014 14:15:31 -0400 Received: from mail-pa0-f52.google.com ([209.85.220.52]:36994 "EHLO mail-pa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752052AbaETSP3 (ORCPT ); Tue, 20 May 2014 14:15:29 -0400 From: Michal Nazarewicz To: Gioh Kim , Joonsoo Kim Cc: Minchan Kim , Andrew Morton , Rik van Riel , Laura Abbott , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Heesub Shin , Mel Gorman , Johannes Weiner , Marek Szyprowski , =?utf-8?B?7J206rG07Zi4?= , gurugio@gmail.com Subject: Re: [RFC][PATCH] CMA: drivers/base/Kconfig: restrict CMA size to non-zero value In-Reply-To: <537ABD6F.9090608@lge.com> Organization: http://mina86.com/ References: <1399509144-8898-1-git-send-email-iamjoonsoo.kim@lge.com> <1399509144-8898-3-git-send-email-iamjoonsoo.kim@lge.com> <20140513030057.GC32092@bbox> <20140515015301.GA10116@js1304-P5Q-DELUXE> <5375C619.8010501@lge.com> <537962A0.4090600@lge.com> <20140519055527.GA24099@js1304-P5Q-DELUXE> <537AA6C7.1040506@lge.com> <537ABD6F.9090608@lge.com> User-Agent: Notmuch/0.17+15~gb65ca8e (http://notmuchmail.org) Emacs/24.3.50.1 (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 X-Hashcash: 1:20:140520:gurugio@gmail.com::V4lMVJrkv5F6fU1H:00000000000000000000000000000000000000000000026Z X-Hashcash: 1:20:140520:linux-kernel@vger.kernel.org::4D7HRPpHeuGMVN2P:00000000000000000000000000000000000L5 X-Hashcash: 1:20:140520:akpm@linux-foundation.org::Y4QFOEHOHMR36ajs:00000000000000000000000000000000000003b7 X-Hashcash: 1:20:140520:mgorman@suse.de::ZGV4WBpPmOcqrFpf:000Z+V X-Hashcash: 1:20:140520:heesub.shin@samsung.com::pLr1KFDoWc9UsbEL:000000000000000000000000000000000000000JD6 X-Hashcash: 1:20:140520:linux-mm@kvack.org::7w8j1v5sfnrfpFjS:000000000000000000000000000000000000000000026m0 X-Hashcash: 1:20:140520:lauraa@codeaurora.org::IN9W6H5mamEBPyIX:000000000000000000000000000000000000000024XJ X-Hashcash: 1:20:140520:minchan.kim@lge.com::C65wTAL03KRed5I2:0000000000000000000000000000000000000000003ouA X-Hashcash: 1:20:140520:riel@redhat.com::9loRvNMnvQdapPEv:005/8g X-Hashcash: 1:20:140520:m.szyprowski@samsung.com::8yJb+74zaJSg/7zZ:00000000000000000000000000000000000006qb9 X-Hashcash: 1:20:140520:gunho.lee@lge.com::5QZIBayzTpsiCRsT:000000000000000000000000000000000000000000005ynW X-Hashcash: 1:20:140520:hannes@cmpxchg.org::QBRnOe1JxuSD4c1t:0000000000000000000000000000000000000000000BGD/ X-Hashcash: 1:20:140520:iamjoonsoo.kim@lge.com::8wfth9g3NLJBmOmi:000000000000000000000000000000000000000DOVt X-Hashcash: 1:20:140520:gioh.kim@lge.com::rS1rs2a6ZA7WSXZn:0IlCR Date: Tue, 20 May 2014 08:15:18 -1000 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 Mon, May 19 2014, Gioh Kim wrote: > My point is atomic_pool should be able to work with/without CMA. Agreed. >> IMO, cma=3D0 command line argument should be supported, as should having >> the default CMA size zero. If CMA size is set to zero, kernel should >> behave as if CMA was not enabled at compile time. > It's also good if atomic_pool can work well with zero CMA size. Exactly. --=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; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJTe5u2AAoJECBgQBJQdR/06jEP/iYmW8mK7Wuu6CYGXh/lzz5t UFw2wQHHnAzZqAxYVKbgUK+XNFAvZ52jWztebNP7XGFqd8Ryn2btWY1/yJEVm63V OsIlZ/oiam4J0y6vSUS0gA3MzazQ1dvAIs96MEkKBqrcWE8WQlVxIkbr/EAT1vIH Zn2Jckhupp4LxRtwtYXXX3P1MikYzIzmsAC2uv4IU4N4btw8e+zSRB06G8PhFZmw YtkHrI9KVYlK5GkoThILXMYjOmO7dErrGXJc6CSSew/TUgsoHnBme96hG+Ahp5Zq nakbo2m1On7pCZzwv+OcHKdim6QZWUzDqk1OBruubuCY60u8778FLfVwMIMBCE9w gFda98xgDUCc40e3UmsZR9kbOiZa8IxRvOdPH3WghS2Vz1BI4IGphH9aBBd6kXbY osUizgtYA646bpuYsq2++YnxgYiIHvE7sjsdu+GyD7JkbSXBYglejXshuO8QKx4D eE1Y5Ak643kb//UqZgRCe4VcihYzuHnYjT7rcdfFRzT30+2cMoKhPJULJhIP956I BOBaM/WQiizDc6vSbpDWjoeC8MoZia2ARqF1vhYFcib1rNaQGpK/MI+tOhx4b0Rc TqljUnVDUg105PcnSaezDSGN3p4yli8F3BYgECuBr/oHrRObjOL/zFPCKV9XXC5z HcKJdseWFVuWOU0La7xz =WbUu -----END PGP SIGNATURE----- --==-=-=-- --=-=-=--