diff mbox series

[09/10] mm/page_alloc: Update PGFREE outside the zone lock in __free_pages_ok

Message ID 20210419141341.26047-10-mgorman@techsingularity.net
State Superseded
Headers show
Series Use local_lock for pcp protection and reduce stat overhead | expand

Commit Message

Mel Gorman April 19, 2021, 2:13 p.m. UTC 
VM events do not need explicit protection by disabling IRQs so
update the counter with IRQs enabled in __free_pages_ok.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/page_alloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a9c1282d9c7b..44a5eb067b38 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1557,13 +1557,14 @@  static void __free_pages_ok(struct page *page, unsigned int order,
 	migratetype = get_pfnblock_migratetype(page, pfn);
 
 	spin_lock_irqsave(&zone->lock, flags);
-	__count_vm_events(PGFREE, 1 << order);
 	if (unlikely(has_isolate_pageblock(zone) ||
 		is_migrate_isolate(migratetype))) {
 		migratetype = get_pfnblock_migratetype(page, pfn);
 	}
 	__free_one_page(page, pfn, zone, order, migratetype, fpi_flags);
 	spin_unlock_irqrestore(&zone->lock, flags);
+
+	__count_vm_events(PGFREE, 1 << order);
 }
 
 void __free_pages_core(struct page *page, unsigned int order)