From: Wei Yang <richardw.yang@linux.intel.com>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Wei Yang <richardw.yang@linux.intel.com>,
linux-mm@kvack.org, akpm@linux-foundation.org,
pasha.tatashin@oracle.com, osalvador@suse.de
Subject: Re: [PATCH] mm/sparse: set section nid for hot-add memory
Date: Mon, 17 Jun 2019 16:46:10 +0800 [thread overview]
Message-ID: <20190617084610.GA8206@richard> (raw)
In-Reply-To: <cd31db5d-65f9-c02c-bca3-d7c1c456e447@arm.com>
On Mon, Jun 17, 2019 at 09:53:05AM +0530, Anshuman Khandual wrote:
>On 06/16/2019 08:05 AM, Wei Yang wrote:
>> section_to_node_table[] is used to record section's node id, which is
>> used in page_to_nid(). While for hot-add memory, this is missed.
>
>Used for NODE_NOT_IN_PAGE_FLAGS case and it is missed for hot-added memory.
>
>>
>> BTW, current online_pages works because it leverages nid in memory_block.
>
>It does.
>
>> But the granularity of node id should be mem_section wide.
>
>Right.
>
>>
>> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
>
>Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Thanks
--
Wei Yang
Help you, Help me
next prev parent reply other threads:[~2019-06-17 8:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-16 2:35 [PATCH] mm/sparse: set section nid for hot-add memory Wei Yang
2019-06-17 4:23 ` Anshuman Khandual
2019-06-17 8:46 ` Wei Yang [this message]
2019-06-17 13:13 ` David Hildenbrand
2019-06-18 0:36 ` Wei Yang
2019-06-17 15:43 ` Oscar Salvador
2019-06-18 0:45 ` Wei Yang
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