The patch titled
Subject: mm/page_alloc: replace local_lock with normal spinlock -fix
has been added to the -mm mm-unstable branch. Its filename is
mm-page_alloc-replace-local_lock-with-normal-spinlock-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-replace-local_lock-with-normal-spinlock-fix.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Subject: mm/page_alloc: replace local_lock with normal spinlock -fix
Date: Mon, 27 Jun 2022 09:46:45 +0100
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
Link: https://lkml.kernel.org/r/20220627084645.GA27531@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Reported-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page_alloc.c~mm-page_alloc-replace-local_lock-with-normal-spinlock-fix
+++ a/mm/page_alloc.c
@@ -3497,7 +3497,7 @@ void free_unref_page(struct page *page,
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);
_
Patches currently in -mm which might be from mgorman@xxxxxxxxxxxxxxxxxxx are
mm-page_alloc-add-page-buddy_list-and-page-pcp_list.patch
mm-page_alloc-use-only-one-pcp-list-for-thp-sized-allocations.patch
mm-page_alloc-split-out-buddy-removal-code-from-rmqueue-into-separate-helper.patch
mm-page_alloc-remove-mistaken-page-==-null-check-in-rmqueue.patch
mm-page_alloc-protect-pcp-lists-with-a-spinlock.patch
mm-page_alloc-replace-local_lock-with-normal-spinlock.patch
mm-page_alloc-replace-local_lock-with-normal-spinlock-fix.patch
