[PATCH] mm/page_alloc: Replace local_lock with normal spinlock -fix

From: Mel Gorman <mgorman@techsingularity.net>
To: Yu Zhao <yuzhao@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Nicolas Saenz Julienne <nsaenzju@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Michal Hocko <mhocko@kernel.org>, Hugh Dickins <hughd@google.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux-MM <linux-mm@kvack.org>
Subject: [PATCH] mm/page_alloc: Replace local_lock with normal spinlock -fix
Date: Mon, 27 Jun 2022 09:46:45 +0100	[thread overview]
Message-ID: <20220627084645.GA27531@techsingularity.net> (raw)
In-Reply-To: <CAOUHufba2KQLbFMoHusTpvEBHS_EWQ1NnOfm3Wczmykk0A1pTw@mail.gmail.com>

As noted by Yu Zhao, use pcp_spin_trylock_irqsave instead of
pcpu_spin_trylock_irqsave. This is a fix to the mm-unstable patch
mm-page_alloc-replace-local_lock-with-normal-spinlock.patch

Reported-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 71065b01827b..934d1b5a5449 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3493,7 +3493,7 @@ void free_unref_page(struct page *page, unsigned int order)
 
 	zone = page_zone(page);
 	pcp_trylock_prepare(UP_flags);
-	pcp = pcpu_spin_trylock_irqsave(struct per_cpu_pages, lock, zone->per_cpu_pageset, flags);
+	pcp = pcp_spin_trylock_irqsave(zone->per_cpu_pageset, flags);
 	if (pcp) {
 		free_unref_page_commit(zone, pcp, page, migratetype, order);
 		pcp_spin_unlock_irqrestore(pcp, flags);
