[PATCH 9/9] mm/page_alloc: Update PGFREE outside the zone lock in __free_pages_ok
From: Mel Gorman <hidden>
Date: 2021-05-12 09:56:50
Also in:
linux-mm, lkml
Subsystem:
memory management, memory management - page allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Linus Torvalds
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 <redacted> Acked-by: Vlastimil Babka <redacted> --- mm/page_alloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 83268f7b3ded..ff8f706839ea 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c@@ -1589,13 +1589,14 @@ 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)
--
2.26.2