linux-kernel - [PATCH -next rfc 0/9] mm: convert page cpupid functions to folios

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Date:   Tue, 26 Sep 2023 08:52:45 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     Mike Rapoport <rppt@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        David Hildenbrand <david@...hat.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <ying.huang@...el.com>,
        Zi Yan <ziy@...dia.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH -next rfc 0/9] mm: convert page cpupid functions to folios

The cpupid(or access time) used by numa balancing is stored in flags
or _last_cpupid(if LAST_CPUPID_NOT_IN_PAGE_FLAGS) of page, this is to
convert page cpupid to folio cpupid, a new _last_cpupid is added into
folio, which make us to use folio->_last_cpupid directly, and the
page_cpupid_reset_last(), page_cpupid_xchg_last(), xchg_page_access_time(),
and page_cpupid_last() are converted to folio one.

Kefeng Wang (9):
  mm_types: add _last_cpupid into folio
  mm: mprotect: use a folio in change_pte_range()
  mm: huge_memory: use a folio in change_huge_pmd()
  mm: convert xchg_page_access_time to xchg_folio_access_time()
  mm: convert page_cpupid_last() to folio_cpupid_last()
  mm: make wp_page_reuse() and finish_mkwrite_fault() to take a folio
  mm: convert page_cpupid_xchg_last() to folio_cpupid_xchg_last()
  mm: page_alloc: use a folio in free_pages_prepare()
  mm: convert page_cpupid_reset_last() to folio_cpupid_reset_last()

 include/linux/mm.h       | 40 ++++++++++++++++++++--------------------
 include/linux/mm_types.h | 13 +++++++++----
 kernel/sched/fair.c      |  4 ++--
 mm/huge_memory.c         | 17 +++++++++--------
 mm/memory.c              | 39 +++++++++++++++++++++------------------
 mm/migrate.c             |  4 ++--
 mm/mm_init.c             |  1 -
 mm/mmzone.c              |  6 +++---
 mm/mprotect.c            | 16 +++++++++-------
 mm/page_alloc.c          | 17 +++++++++--------
 10 files changed, 84 insertions(+), 73 deletions(-)

-- 
2.27.0