linux-kernel - [PATCH -next 5/9] mm: convert page_cpupid_last() to folio_cpupid

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Date:   Tue, 26 Sep 2023 08:52:50 +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 5/9] mm: convert page_cpupid_last() to folio_cpupid_last()

Make page_cpupid_last() to take a folio, and rename it to
folio_cpupid_last() since all callers with a folio.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 include/linux/mm.h | 12 ++++++------
 mm/huge_memory.c   |  4 ++--
 mm/memory.c        |  2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 49b9fa383e7d..aa7fdda1b56c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1689,18 +1689,18 @@ static inline int page_cpupid_xchg_last(struct page *page, int cpupid)
 	return xchg(&page->_last_cpupid, cpupid & LAST_CPUPID_MASK);
 }
 
-static inline int page_cpupid_last(struct page *page)
+static inline int folio_cpupid_last(struct folio *folio)
 {
-	return page->_last_cpupid;
+	return folio->_last_cpupid;
 }
 static inline void page_cpupid_reset_last(struct page *page)
 {
 	page->_last_cpupid = -1 & LAST_CPUPID_MASK;
 }
 #else
-static inline int page_cpupid_last(struct page *page)
+static inline int folio_cpupid_last(struct folio *folio)
 {
-	return (page->flags >> LAST_CPUPID_PGSHIFT) & LAST_CPUPID_MASK;
+	return (folio->flags >> LAST_CPUPID_PGSHIFT) & LAST_CPUPID_MASK;
 }
 
 extern int page_cpupid_xchg_last(struct page *page, int cpupid);
@@ -1740,9 +1740,9 @@ static inline int xchg_folio_access_time(struct folio *folio, int time)
 	return 0;
 }
 
-static inline int page_cpupid_last(struct page *page)
+static inline int folio_cpupid_last(struct folio *folio)
 {
-	return page_to_nid(page); /* XXX */
+	return folio_nid(folio); /* XXX */
 }
 
 static inline int cpupid_to_nid(int cpupid)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c4f4951615fd..93981a759daf 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1555,7 +1555,7 @@ vm_fault_t do_huge_pmd_numa_page(struct vm_fault *vmf)
 	 * to record page access time.  So use default value.
 	 */
 	if (node_is_toptier(nid))
-		last_cpupid = page_cpupid_last(&folio->page);
+		last_cpupid = folio_cpupid_last(folio);
 	target_nid = numa_migrate_prep(folio, vma, haddr, nid, &flags);
 	if (target_nid == NUMA_NO_NODE) {
 		folio_put(folio);
@@ -2508,7 +2508,7 @@ static void __split_huge_page_tail(struct folio *folio, int tail,
 	if (page_is_idle(head))
 		set_page_idle(page_tail);
 
-	page_cpupid_xchg_last(page_tail, page_cpupid_last(head));
+	page_cpupid_xchg_last(page_tail, folio_cpupid_last(folio));
 
 	/*
 	 * always add to the tail because some iterators expect new
diff --git a/mm/memory.c b/mm/memory.c
index 29c5618c91e5..5ab6e8d45a7d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4814,7 +4814,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
 	    !node_is_toptier(nid))
 		last_cpupid = (-1 & LAST_CPUPID_MASK);
 	else
-		last_cpupid = page_cpupid_last(&folio->page);
+		last_cpupid = folio_cpupid_last(folio);
 	target_nid = numa_migrate_prep(folio, vma, vmf->address, nid, &flags);
 	if (target_nid == NUMA_NO_NODE) {
 		folio_put(folio);
-- 
2.27.0