From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 9CAC26B02B4 for ; Thu, 22 Jun 2017 00:18:49 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id a82so4947078pfc.8 for ; Wed, 21 Jun 2017 21:18:49 -0700 (PDT) Received: from mail-pf0-x242.google.com (mail-pf0-x242.google.com. [2607:f8b0:400e:c00::242]) by mx.google.com with ESMTPS id 16si289825pfq.152.2017.06.21.21.18.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Jun 2017 21:18:48 -0700 (PDT) Received: by mail-pf0-x242.google.com with SMTP id y7so1072368pfd.3 for ; Wed, 21 Jun 2017 21:18:48 -0700 (PDT) From: Wei Yang Subject: [PATCH] docs/memory-hotplug: adjust the explanation of valid_zones sysfs Date: Thu, 22 Jun 2017 12:18:44 +0800 Message-Id: <20170622041844.9852-1-richard.weiyang@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: mhocko@kernel.org Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yang After commit "mm, memory_hotplug: do not associate hotadded memory to zones until online", the meaning of valid_zones is changed. 1. When the memory block is online, it returns the onlined zone name 2. We won't have "Movable Normal" case, because default_zone couldn't be MOVABLE This patch adjust the document according the code change. Signed-off-by: Wei Yang --- Documentation/memory-hotplug.txt | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt index 670f3ded0802..d85ceb53f52a 100644 --- a/Documentation/memory-hotplug.txt +++ b/Documentation/memory-hotplug.txt @@ -171,15 +171,15 @@ Under each memory block, you can see 5 files: block is removable and a value of 0 indicates that it is not removable. A memory block is removable only if every section in the block is removable. -'valid_zones' : read-only: designed to show which zones this memory block - can be onlined to. - The first column shows it's default zone. +'valid_zones' : read-only: shows different information based on state. + When state is online, it is designed to show the + zone name this memory block is onlined to. + When state is offline, it is designed to show which zones + this memory block can be onlined to. The first column + shows it's default zone. "memory6/valid_zones: Normal Movable" shows this memoryblock can be onlined to ZONE_NORMAL by default and to ZONE_MOVABLE by online_movable. - "memory7/valid_zones: Movable Normal" shows this memoryblock - can be onlined to ZONE_MOVABLE by default and to ZONE_NORMAL - by online_kernel. NOTE: These directories/files appear after physical memory hotplug phase. -- 2.11.0 -- 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