From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752821AbdHJP17 (ORCPT ); Thu, 10 Aug 2017 11:27:59 -0400 Received: from mail-yw0-f172.google.com ([209.85.161.172]:33880 "EHLO mail-yw0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751914AbdHJP16 (ORCPT ); Thu, 10 Aug 2017 11:27:58 -0400 MIME-Version: 1.0 In-Reply-To: <20170810114052.GP23863@dhcp22.suse.cz> References: <20170801124111.28881-1-mhocko@kernel.org> <20170807070029.GD32434@dhcp22.suse.cz> <20170810114052.GP23863@dhcp22.suse.cz> From: Dan Williams Date: Thu, 10 Aug 2017 08:27:56 -0700 Message-ID: Subject: Re: [RFC PATCH v2 0/6] mm, memory_hotplug: allocate memmap from hotadded memory To: Michal Hocko Cc: Linux MM , Andrew Morton , Mel Gorman , Vlastimil Babka , Andrea Arcangeli , Jerome Glisse , Reza Arbab , Yasuaki Ishimatsu , qiuxishi@huawei.com, Kani Toshimitsu , slaoub@gmail.com, Joonsoo Kim , Andi Kleen , Daniel Kiper , Igor Mammedov , Vitaly Kuznetsov , LKML , Benjamin Herrenschmidt , Catalin Marinas , Fenghua Yu , Gerald Schaefer , Heiko Carstens , "H. Peter Anvin" , Ingo Molnar , Martin Schwidefsky , Michael Ellerman , Paul Mackerras , Thomas Gleixner , Tony Luck , Will Deacon , X86 ML Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 10, 2017 at 4:40 AM, Michal Hocko wrote: > On Tue 08-08-17 13:01:36, Dan Williams wrote: >> On Mon, Aug 7, 2017 at 12:00 AM, Michal Hocko wrote: >> > Any comments? Especially for the arch specific? Has anybody had a chance >> > to test this? I do not want to rush this but I would be really glag if >> > we could push this work in 4.14 merge window. >> >> Hi Michal, >> >> I'm interested in taking a look at this especially if we might be able >> to get rid of vmem_altmap, but this is currently stuck behind some >> other work in my queue. I'll try to circle back in the next couple >> weeks. > > Well, vmem_altmap was there and easy to reuse. Replacing with something > else is certainly possible but I really need something to hook a > dedicated allocator into vmemmap code. Oh, you're reusing it, that's great. Then I definitely got the wrong impression from the first glance at the patch set, I'll dig deeper. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yw0-f198.google.com (mail-yw0-f198.google.com [209.85.161.198]) by kanga.kvack.org (Postfix) with ESMTP id 9E2FD6B02B4 for ; Thu, 10 Aug 2017 11:28:00 -0400 (EDT) Received: by mail-yw0-f198.google.com with SMTP id l82so15648916ywc.1 for ; Thu, 10 Aug 2017 08:28:00 -0700 (PDT) Received: from mail-yw0-x22f.google.com (mail-yw0-x22f.google.com. [2607:f8b0:4002:c05::22f]) by mx.google.com with ESMTPS id v18si703698ybd.252.2017.08.10.08.27.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 10 Aug 2017 08:27:57 -0700 (PDT) Received: by mail-yw0-x22f.google.com with SMTP id s143so6800528ywg.1 for ; Thu, 10 Aug 2017 08:27:57 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20170810114052.GP23863@dhcp22.suse.cz> References: <20170801124111.28881-1-mhocko@kernel.org> <20170807070029.GD32434@dhcp22.suse.cz> <20170810114052.GP23863@dhcp22.suse.cz> From: Dan Williams Date: Thu, 10 Aug 2017 08:27:56 -0700 Message-ID: Subject: Re: [RFC PATCH v2 0/6] mm, memory_hotplug: allocate memmap from hotadded memory Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Linux MM , Andrew Morton , Mel Gorman , Vlastimil Babka , Andrea Arcangeli , Jerome Glisse , Reza Arbab , Yasuaki Ishimatsu , qiuxishi@huawei.com, Kani Toshimitsu , slaoub@gmail.com, Joonsoo Kim , Andi Kleen , Daniel Kiper , Igor Mammedov , Vitaly Kuznetsov , LKML , Benjamin Herrenschmidt , Catalin Marinas , Fenghua Yu , Gerald Schaefer , Heiko Carstens , "H. Peter Anvin" , Ingo Molnar , Martin Schwidefsky , Michael Ellerman , Paul Mackerras , Thomas Gleixner , Tony Luck , Will Deacon , X86 ML On Thu, Aug 10, 2017 at 4:40 AM, Michal Hocko wrote: > On Tue 08-08-17 13:01:36, Dan Williams wrote: >> On Mon, Aug 7, 2017 at 12:00 AM, Michal Hocko wrote: >> > Any comments? Especially for the arch specific? Has anybody had a chance >> > to test this? I do not want to rush this but I would be really glag if >> > we could push this work in 4.14 merge window. >> >> Hi Michal, >> >> I'm interested in taking a look at this especially if we might be able >> to get rid of vmem_altmap, but this is currently stuck behind some >> other work in my queue. I'll try to circle back in the next couple >> weeks. > > Well, vmem_altmap was there and easy to reuse. Replacing with something > else is certainly possible but I really need something to hook a > dedicated allocator into vmemmap code. Oh, you're reusing it, that's great. Then I definitely got the wrong impression from the first glance at the patch set, I'll dig deeper. -- 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