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Date: Wed, 16 Mar 2016 13:36:57 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH] mm: Export symbols unmapped_area() &
 unmapped_area_topdown()
Message-ID: <20160316203657.GA29061@infradead.org>
References: <1458148234-4456-1-git-send-email-Olu.Ogunbowale@imgtec.com>
 <1458148234-4456-2-git-send-email-Olu.Ogunbowale@imgtec.com>
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In-Reply-To: <1458148234-4456-2-git-send-email-Olu.Ogunbowale@imgtec.com>
Sender: owner-linux-mm@kvack.org
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To: Olu Ogunbowale <Olu.Ogunbowale@imgtec.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@linux-foundation.org>, Michel Lespinasse <walken@google.com>, Andrew Morton <akpm@linux-foundation.org>, Rik van Riel <riel@redhat.com>, Hugh Dickins <hughd@google.com>, Russell King <linux@arm.linux.org.uk>, Ralf Baechle <ralf@linux-mips.org>, Paul Mundt <lethal@linux-sh.org>, "David S. Miller" <davem@davemloft.net>, Chris Metcalf <cmetcalf@tilera.com>, Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>

On Wed, Mar 16, 2016 at 05:10:34PM +0000, Olu Ogunbowale wrote:
> From: Olujide Ogunbowale <Olu.Ogunbowale@imgtec.com>
> 
> Export the memory management functions, unmapped_area() &
> unmapped_area_topdown(), as GPL symbols; this allows the kernel to
> better support process address space mirroring on both CPU and device
> for out-of-tree drivers by allowing the use of vm_unmapped_area() in a
> driver's file operation get_unmapped_area().

No new exports without in-tree drivers.  How about you get started
to get your drives into the tree first?

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