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authorMel Gorman <[email protected]>2021-06-28 19:42:03 -0700
committerLinus Torvalds <[email protected]>2021-06-29 10:53:54 -0700
commit902499937e3a82156dcb5069b6df27640480e204 (patch)
tree0f532f532d402b1093f9aaa97a4f52b534eade0f
parentdf1acc856923c0a65c28b588585449106c316b71 (diff)
mm/page_alloc: update PGFREE outside the zone lock in __free_pages_ok
VM events do not need explicit protection by disabling IRQs so update the counter with IRQs enabled in __free_pages_ok. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Mel Gorman <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: Chuck Lever <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jesper Dangaard Brouer <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/page_alloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dd367e5df8cb..37ce0c2f3bae 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1600,13 +1600,14 @@ 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)