From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753302AbbAVQMt (ORCPT ); Thu, 22 Jan 2015 11:12:49 -0500 Received: from resqmta-ch2-12v.sys.comcast.net ([69.252.207.44]:38763 "EHLO resqmta-ch2-12v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751922AbbAVQMr (ORCPT ); Thu, 22 Jan 2015 11:12:47 -0500 Date: Thu, 22 Jan 2015 10:12:43 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Joonsoo Kim cc: Zhang Yanfei , Minchan Kim , Hui Zhu , akpm@linux-foundation.org, mgorman@suse.de, hannes@cmpxchg.org, riel@redhat.com, vbabka@suse.cz, isimatu.yasuaki@jp.fujitsu.com, wangnan0@huawei.com, davidlohr@hp.com, rientjes@google.com, sasha.levin@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Hui Zhu , Weixing Liu Subject: Re: [PATCH] CMA: treat free cma pages as non-free if not ALLOC_CMA on watermark checking In-Reply-To: <20150122015718.GE21444@js1304-P5Q-DELUXE> Message-ID: References: <1421569979-2596-1-git-send-email-teawater@gmail.com> <20150119065544.GA18473@blaptop> <54BE7547.6010701@gmail.com> <20150122015718.GE21444@js1304-P5Q-DELUXE> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 22 Jan 2015, Joonsoo Kim wrote: > > Just out of curiosity, "new zone"? Something like movable zone? > > Yes, I named it as ZONE_CMA. Maybe I can send prototype of > implementation within 1 or 2 weeks. Ugghh. I'd rather reduce the zone types. Do we need slab allocator etc allocations in that zone? This will multiply the management structures in various subsystems.