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authorMel Gorman <mgorman@techsingularity.net>2021-06-29 05:42:03 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-29 20:53:54 +0300
commit902499937e3a82156dcb5069b6df27640480e204 (patch)
tree0f532f532d402b1093f9aaa97a4f52b534eade0f /mm
parentdf1acc856923c0a65c28b588585449106c316b71 (diff)
downloadlinux-902499937e3a82156dcb5069b6df27640480e204.tar.xz
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/20210512095458.30632-10-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-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)