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| author | Yafang Shao <laoar.shao@gmail.com> | 2022-10-06 12:15:40 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-13 03:51:51 +0200 |
| commit | 15cd90049d595e592d8860ee15a3f23491d54d17 (patch) | |
| tree | 0daa991464b018c5f74eb15f6e6cc44ec3b2767b /mm/page_alloc.c | |
| parent | mm/selftest: uffd: explain the write missing fault check (diff) | |
| download | linux-15cd90049d595e592d8860ee15a3f23491d54d17.tar.xz linux-15cd90049d595e592d8860ee15a3f23491d54d17.zip | |
mm/page_alloc: fix incorrect PGFREE and PGALLOC for high-order page
PGFREE and PGALLOC represent the number of freed and allocated pages. So
the page order must be considered.
Link: https://lkml.kernel.org/r/20221006101540.40686-1-laoar.shao@gmail.com
Fixes: 44042b449872 ("mm/page_alloc: allow high-order pages to be stored on the per-cpu lists")
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 059f6946832f..8e9b7f08a32c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3446,7 +3446,7 @@ static void free_unref_page_commit(struct zone *zone, struct per_cpu_pages *pcp, int pindex; bool free_high; - __count_vm_event(PGFREE); + __count_vm_events(PGFREE, 1 << order); pindex = order_to_pindex(migratetype, order); list_add(&page->pcp_list, &pcp->lists[pindex]); pcp->count += 1 << order; @@ -3803,7 +3803,7 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone, pcp_spin_unlock_irqrestore(pcp, flags); pcp_trylock_finish(UP_flags); if (page) { - __count_zid_vm_events(PGALLOC, page_zonenum(page), 1); + __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order); zone_statistics(preferred_zone, zone, 1); } return page; |