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Date:   Tue, 7 Jun 2022 02:47:57 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc:     Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        LKML <linux-kernel@vger.kernel.org>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>,
        Nicholas Piggin <npiggin@gmail.com>,
        Oleksiy Avramchenko <oleksiy.avramchenko@sony.com>
Subject: Re: [PATCH 4/5] mm/vmalloc: Extend __find_vmap_area() with one more
 argument
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References: <20220607093449.3100-1-urezki@gmail.com>
 <20220607093449.3100-5-urezki@gmail.com>
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On Tue, Jun 07, 2022 at 11:34:48AM +0200, Uladzislau Rezki (Sony) wrote:
> __find_vmap_area() finds a "vmap_area" based on passed address.
> It scan the specific "vmap_area_root" rb-tree. Extend the function
> with one extra argument, so any tree can be specified where the
> search has to be done.

Uhh, why?  This just adds a copletel useless argument.