linux-kernel - Proposal to realize hot-add *several sections one time*

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Date:	Wed, 11 Jun 2014 17:12:33 +0800
From:	Zhang Zhen <zhenzhang.zhang@...wei.com>
To:	<gregkh@...uxfoundation.org>, <laijs@...fujitsu.com>,
	<sjenning@...ux.vnet.ibm.com>
CC:	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	Wang Nan <wangnan0@...wei.com>
Subject: Proposal to realize hot-add *several sections one time*

Hi,

Now we can hot-add memory by

% echo start_address_of_new_memory > /sys/devices/system/memory/probe

Then, [start_address_of_new_memory, start_address_of_new_memory +
memory_block_size] memory range is hot-added.

But we can only hot-add *one section one time* by this way.
Whether we can add an argument on behalf of the count of the sections to add ?
So we can can hot-add *several sections one time*. Just like:

% echo start_address_of_new_memory count_of_sections > /sys/devices/system/memory/probe

Then, [start_address_of_new_memory, start_address_of_new_memory +
count_of_sections * memory_block_size] memory range is hot-added.

If this proposal is reasonable, i will send a patch to realize it.

Any suggestions ?

Best regards.

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