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Date:   Tue, 11 Oct 2022 13:56:14 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Liam Howlett <liam.howlett@oracle.com>,
        "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
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        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v14 07/70] lib/test_maple_tree: add testing for maple tree
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On Tue, Oct 11, 2022 at 02:16:02PM +0200, Geert Uytterhoeven wrote:
> > lib/test_maple_tree.c             | 38307 ++++++++++++++++++++++++++++
> 
> Does this test really belong under lib/?
> All other test modules there can be compiled and run as part of the
> kernel itself.

So can this.  It's just like test_ida and test_xarray; it can be
built as a module, or it can be extracted into userspace and run there.