linux-kernel - [RFC] mm: shall we add an entry in meminfo to show the memory from module?

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Message-ID: <56A1D52B.6060002@huawei.com>
Date:	Fri, 22 Jan 2016 15:07:23 +0800
From:	Xishi Qiu <qiuxishi@...wei.com>
To:	Linux MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [RFC] mm: shall we add an entry in meminfo to show the memory from
 module?

Currently /proc/meminfo will not show the memory from module.

This entry "VmallocUsed: xxx" only shows the memory in the range
[VMALLOC_START, VMALLOC_END] alloced by vmalloc() ->... -> __vmalloc_node_range().

The memory which used by module is from module_alloc() -> __vmalloc_node_range().

So we will miss some memory when we calculate the total in meminfo.

Thanks,
Xishi Qiu