From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ot0-f199.google.com (mail-ot0-f199.google.com [74.125.82.199]) by kanga.kvack.org (Postfix) with ESMTP id B22546B026B for ; Fri, 15 Dec 2017 20:48:21 -0500 (EST) Received: by mail-ot0-f199.google.com with SMTP id u22so5670198otd.13 for ; Fri, 15 Dec 2017 17:48:21 -0800 (PST) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id z7sor3133330otz.42.2017.12.15.17.48.20 for (Google Transport Security); Fri, 15 Dec 2017 17:48:20 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20171215140947.26075-5-hch@lst.de> References: <20171215140947.26075-1-hch@lst.de> <20171215140947.26075-5-hch@lst.de> From: Dan Williams Date: Fri, 15 Dec 2017 17:48:20 -0800 Message-ID: Subject: Re: [PATCH 04/17] mm: pass the vmem_altmap to arch_add_memory and __add_pages Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Hellwig Cc: =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Logan Gunthorpe , "linux-nvdimm@lists.01.org" , linuxppc-dev , X86 ML , Linux MM , "linux-kernel@vger.kernel.org" On Fri, Dec 15, 2017 at 6:09 AM, Christoph Hellwig wrote: > We can just pass this on instead of having to do a radix tree lookup > without proper locking 2 levels into the callchain. > > Signed-off-by: Christoph Hellwig Yeah, the lookup of vmem_altmap is too magical and surprising this is better. Reviewed-by: Dan Williams -- 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