linux-kernel - Re: [PATCH] memblock: stop using implicit alignement to SMP_CACHE

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Message-ID: <20181009230137.rju3lm2saou5xsa4@pburton-laptop>
Date:   Tue, 9 Oct 2018 23:01:40 +0000
From:   Paul Burton <paul.burton@...s.com>
To:     Mike Rapoport <rppt@...ux.vnet.ibm.com>
CC:     "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Chris Zankel <chris@...kel.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Guan Xuetao <gxt@....edu.cn>, Ingo Molnar <mingo@...hat.com>,
        Matt Turner <mattst88@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Hocko <mhocko@...e.com>,
        Michal Simek <monstr@...str.eu>,
        Richard Weinberger <richard@....at>,
        Russell King <linux@...linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tony Luck <tony.luck@...el.com>,
        "linux-alpha@...r.kernel.org" <linux-alpha@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-m68k@...ts.linux-m68k.org" <linux-m68k@...ts.linux-m68k.org>,
        "linux-mips@...ux-mips.org" <linux-mips@...ux-mips.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-um@...ts.infradead.org" <linux-um@...ts.infradead.org>
Subject: Re: [PATCH] memblock: stop using implicit alignement to
 SMP_CACHE_BYTES

Hi Mike,

On Fri, Oct 05, 2018 at 12:07:04AM +0300, Mike Rapoport wrote:
> When a memblock allocation APIs are called with align = 0, the alignment is
> implicitly set to SMP_CACHE_BYTES.
> 
> Replace all such uses of memblock APIs with the 'align' parameter explicitly
> set to SMP_CACHE_BYTES and stop implicit alignment assignment in the
> memblock internal allocation functions.
> 
>%
> 
> Suggested-by: Michal Hocko <mhocko@...e.com>
> Signed-off-by: Mike Rapoport <rppt@...ux.vnet.ibm.com>

  Acked-by: Paul Burton <paul.burton@...s.com> # MIPS part

Thanks,
    Paul