linux-kernel - [PATCH v3 12/19] mm: add folio_xchg_last

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Message-ID: <20231018140806.2783514-13-wangkefeng.wang@huawei.com>
Date:   Wed, 18 Oct 2023 22:07:59 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <willy@...radead.org>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <ying.huang@...el.com>,
        <david@...hat.com>, Zi Yan <ziy@...dia.com>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH v3 12/19] mm: add folio_xchg_last_cpupid()

Add folio_xchg_last_cpupid() wrapper, which is required to convert
page_cpupid_xchg_last() to folio vertion later in the series.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 include/linux/mm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8a2ff345338b..8229137e093b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1795,6 +1795,11 @@ static inline void vma_set_access_pid_bit(struct vm_area_struct *vma)
 }
 #endif /* CONFIG_NUMA_BALANCING */
 
+static inline int folio_xchg_last_cpupid(struct folio *folio, int cpupid)
+{
+	return page_cpupid_xchg_last(&folio->page, cpupid);
+}
+
 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
 
 /*
-- 
2.27.0