linux-kernel - [PATCH v2 0/2] mm: Don't set and reset page count in MEMINIT

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Message-Id: <20230925072150.386880-1-yajun.deng@linux.dev>
Date:   Mon, 25 Sep 2023 15:21:48 +0800
From:   Yajun Deng <yajun.deng@...ux.dev>
To:     akpm@...ux-foundation.org, rppt@...nel.org
Cc:     mike.kravetz@...cle.com, muchun.song@...ux.dev,
        willy@...radead.org, david@...hat.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Yajun Deng <yajun.deng@...ux.dev>
Subject: [PATCH v2 0/2] mm: Don't set and reset page count in MEMINIT_EARLY

__init_single_page would set page count and __free_pages_core would
reset it. A lot of pages don't need to do this when in MEMINIT_EARLY
context. It's unnecessary and time-consuming.

The 1st patch is pass page count and reserved to __init_single_page.
It's in preparation for the 2nd patch, it didn't change anything.

The 2nd patch only set page count for the reserved region, not all
of the region.

Yajun Deng (2):
  mm: pass page count and reserved to __init_single_page
  mm: Init page count in reserve_bootmem_region when MEMINIT_EARLY

 mm/hugetlb.c    |  2 +-
 mm/internal.h   |  8 +++++++-
 mm/mm_init.c    | 45 ++++++++++++++++++++++++++++-----------------
 mm/page_alloc.c | 20 ++++++++++++--------
 4 files changed, 48 insertions(+), 27 deletions(-)

-- 
2.25.1