linux-kernel - Re: [v4 3/4] memblock: introduce MEMBLOCK_RSRV

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Message-Id: <05DA93DB-84E5-48C3-AA16-F1F2525C8CC8@linux.dev>
Date:   Wed, 6 Sep 2023 19:35:52 +0800
From:   Muchun Song <muchun.song@...ux.dev>
To:     Usama Arif <usama.arif@...edance.com>
Cc:     Linux-MM <linux-mm@...ck.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        "Mike Rapoport (IBM)" <rppt@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Muchun Song <songmuchun@...edance.com>,
        fam.zheng@...edance.com, liangma@...ngbit.com,
        punit.agrawal@...edance.com
Subject: Re: [v4 3/4] memblock: introduce MEMBLOCK_RSRV_NOINIT flag



> On Sep 6, 2023, at 19:26, Usama Arif <usama.arif@...edance.com> wrote:
> 
> For reserved memory regions marked with this flag,
> reserve_bootmem_region is not called during memmap_init_reserved_pages.
> This can be used to avoid struct page initialization for
> regions which won't need them, for e.g. hugepages with
> HVO enabled.
> 
> Signed-off-by: Usama Arif <usama.arif@...edance.com>

Acked-by: Muchun Song <songmuchun@...edance.com>