linux-kernel - Re: [PATCH] memblock: make keeping memblock memory opt-in rather than opt-out

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Message-ID: <87h8acyitd.fsf@concordia.ellerman.id.au>
Date:   Fri, 03 May 2019 01:31:10 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Mike Rapoport <rppt@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Richard Kuo <rkuo@...eaurora.org>,
        Tony Luck <tony.luck@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Ley Foon Tan <lftan@...era.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Eric Biederman <ebiederm@...ssion.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-hexagon@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org,
        nios2-dev@...ts.rocketboards.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        linux-mm@...ck.org, kexec@...ts.infradead.org,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: Re: [PATCH] memblock: make keeping memblock memory opt-in rather than opt-out

Mike Rapoport <rppt@...ux.ibm.com> writes:
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 2d0be82..39877b9 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -143,6 +143,7 @@ config PPC
>  	select ARCH_HAS_UBSAN_SANITIZE_ALL
>  	select ARCH_HAS_ZONE_DEVICE		if PPC_BOOK3S_64
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
> +	select ARCH_KEEP_MEMBLOCK

Acked-by: Michael Ellerman <mpe@...erman.id.au> (powerpc)

cheers