From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-f72.google.com (mail-ed1-f72.google.com [209.85.208.72]) by kanga.kvack.org (Postfix) with ESMTP id 3DC356B5790 for ; Fri, 30 Nov 2018 04:52:34 -0500 (EST) Received: by mail-ed1-f72.google.com with SMTP id k58so2557295eda.20 for ; Fri, 30 Nov 2018 01:52:34 -0800 (PST) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id a12si2262132edk.106.2018.11.30.01.52.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 30 Nov 2018 01:52:33 -0800 (PST) Date: Fri, 30 Nov 2018 10:52:30 +0100 From: Michal Hocko Subject: Re: [PATCH v3 1/2] mm, sparse: drop pgdat_resize_lock in sparse_add/remove_one_section() Message-ID: <20181130095230.GG6923@dhcp22.suse.cz> References: <20181128091243.19249-1-richard.weiyang@gmail.com> <20181129155316.8174-1-richard.weiyang@gmail.com> <20181130042815.t44nroyqcqa3tpgv@master> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: osalvador@suse.de Cc: Wei Yang , dave.hansen@intel.com, David Hildenbrand , akpm@linux-foundation.org, linux-mm@kvack.org On Fri 30-11-18 10:19:13, David Hildenbrand wrote: > >> I suggest adding what you just found out to > >> Documentation/admin-guide/mm/memory-hotplug.rst "Locking Internals". > >> Maybe a new subsection for mem_hotplug_lock. And eventually also > >> pgdat_resize_lock. > > > > Well, I am not good at document writting. Below is my first trial. Look > > forward your comments. > > I'll have a look, maybe also Oscar and Michal can have a look. I guess > we don't have to cover all now, we can add more details as we discover them. Oscar, didn't you have something already? -- Michal Hocko SUSE Labs