linux-kernel - Re: [PATCH v2 rebased 5/9] powerpc/mm: Call radix__arch_get_unmapped_area() from arch_get_unmapped

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Message-Id: <1638338152.00yryi8b39.astroid@bobo.none>
Date:   Wed, 01 Dec 2021 16:00:58 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     alex@...ti.fr, Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 rebased 5/9] powerpc/mm: Call
 radix__arch_get_unmapped_area() from arch_get_unmapped_area()

Excerpts from Christophe Leroy's message of November 26, 2021 3:52 am:
> Instead of setting mm->get_unmapped_area() to either
> arch_get_unmapped_area() or radix__arch_get_unmapped_area(),
> always set it to arch_get_unmapped_area() and call
> radix__arch_get_unmapped_area() from there when radix is enabled.
> 
> To keep radix__arch_get_unmapped_area() static, move it to slice.c
> 
> Do the same with radix__arch_get_unmapped_area_topdown()

Same comment with this one really. It would be better if we can
reuse generic code.

Thanks,
Nick