linux-kernel - Re: [PATCH v6 0/4] Fix free/allocation of runtime gigantic pages

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Date:   Wed, 13 Mar 2019 17:48:21 +0100
From:   Alexandre Ghiti <alex@...ti.fr>
To:     Dave Hansen <dave.hansen@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        "David S . Miller" <davem@...emloft.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v6 0/4] Fix free/allocation of runtime gigantic pages

On 03/13/2019 05:41 PM, Dave Hansen wrote:
> On 3/7/19 5:20 AM, Alexandre Ghiti wrote:
>> This series fixes sh and sparc that did not advertise their gigantic page
>> support and then were not able to allocate and free those pages at runtime.
>> It renames MEMORY_ISOLATION && COMPACTION || CMA condition into the more
>> accurate CONTIG_ALLOC, since it allows the definition of alloc_contig_range
>> function.
>> Finally, it then fixes the wrong definition of ARCH_HAS_GIGANTIC_PAGE config
>> that, without MEMORY_ISOLATION && COMPACTION || CMA defined, did not allow
>> architectures to free boottime allocated gigantic pages although unrelated.
> Looks good, thanks for all the changes.  For everything generic in the
> set, plus the x86 bits:
>
> Acked-by: Dave Hansen <dave.hansen@...el.com>

Thanks Dave,

Alex