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Date:   Mon, 22 Apr 2019 21:54:14 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Alexandre Ghiti <alex@ghiti.fr>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Christoph Hellwig <hch@lst.de>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <paul.burton@mips.com>,
        James Hogan <jhogan@kernel.org>,
        Palmer Dabbelt <palmer@sifive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
        Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v3 04/11] arm64, mm: Move generic mmap layout functions
 to mm
Message-ID: <20190422195414.GC2224@lst.de>
References: <20190417052247.17809-1-alex@ghiti.fr> <20190417052247.17809-5-alex@ghiti.fr>
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On Wed, Apr 17, 2019 at 01:22:40AM -0400, Alexandre Ghiti wrote:
> arm64 handles top-down mmap layout in a way that can be easily reused
> by other architectures, so make it available in mm.
> It then introduces a new config ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
> that can be set by other architectures to benefit from those functions.
> Note that this new config depends on MMU being enabled, if selected
> without MMU support, a warning will be thrown.
> 
> Suggested-by: Christoph Hellwig <hch@infradead.org>
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>