linux-kernel - Re: [PATCH v3 07/14] powerpc/32: drop get

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Date:   Fri, 6 Mar 2020 20:00:16 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Brian Cain <bcain@...eaurora.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Christophe Leroy <christophe.leroy@....fr>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Guan Xuetao <gxt@....edu.cn>,
        James Morse <james.morse@....com>,
        Jonas Bonn <jonas@...thpole.se>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Ley Foon Tan <ley.foon.tan@...el.com>,
        Marc Zyngier <maz@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>,
        Rich Felker <dalias@...c.org>,
        Russell King <linux@...linux.org.uk>,
        Stafford Horne <shorne@...il.com>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Tony Luck <tony.luck@...el.com>, Will Deacon <will@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        kvmarm@...ts.cs.columbia.edu, kvm-ppc@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-hexagon@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org,
        linux-sh@...r.kernel.org, nios2-dev@...ts.rocketboards.org,
        openrisc@...ts.librecores.org,
        uclinux-h8-devel@...ts.sourceforge.jp,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: Re: [PATCH v3 07/14] powerpc/32: drop get_pteptr()

On Thu, 27 Feb 2020 10:46:01 +0200 Mike Rapoport <rppt@...nel.org> wrote:

> Commit 8d30c14cab30 ("powerpc/mm: Rework I$/D$ coherency (v3)") and
> commit 90ac19a8b21b ("[POWERPC] Abolish iopa(), mm_ptov(),
> io_block_mapping() from arch/powerpc") removed the use of get_pteptr()
> outside of mm/pgtable_32.c
> 
> In mm/pgtable_32.c, the only user of get_pteptr() is __change_page_attr()
> which operates on kernel context and on lowmem pages only.
> 
> Move page table traversal to __change_page_attr() and drop get_pteptr().

People have been changing things in linux-next and the powerpc patches
are hurting.

I'll disable this patch series for now.  Can you please redo
powerpc-32-drop-get_pteptr.patch and
powerpc-add-support-for-folded-p4d-page-tables.patch (and
powerpc-add-support-for-folded-p4d-page-tables-fix.patch)?

Thanks.