diff options
| author | Mel Gorman <mgorman@techsingularity.net> | 2021-06-29 04:42:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 19:53:54 +0200 |
| commit | 902499937e3a82156dcb5069b6df27640480e204 (patch) | |
| tree | 0f532f532d402b1093f9aaa97a4f52b534eade0f /mm/page_alloc.c | |
| parent | mm/page_alloc: avoid conflating IRQs disabled with zone->lock (diff) | |
| download | linux-902499937e3a82156dcb5069b6df27640480e204.tar.xz linux-902499937e3a82156dcb5069b6df27640480e204.zip | |
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 '')
| -rw-r--r-- | mm/page_alloc.c | 3 |
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) |