diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f46e519618a0..de547ef9a9ad 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2370,7 +2370,7 @@ static void free_unref_page_commit(struct zone *zone, struct per_cpu_pages *pcp, { int high; int pindex; - bool free_high; + bool free_high = false; __count_vm_events(PGFREE, 1 << order); pindex = order_to_pindex(migratetype, order); @@ -2383,8 +2383,13 @@ static void free_unref_page_commit(struct zone *zone, struct per_cpu_pages *pcp, * freeing without allocation. The remainder after bulk freeing * stops will be drained from vmstat refresh context. */ - free_high = (pcp->free_factor && order && order <= PAGE_ALLOC_COSTLY_ORDER); - + if (order && order <= PAGE_ALLOC_COSTLY_ORDER) { + free_high = (pcp->free_factor && + (pcp->flags & PCPF_PREV_FREE_HIGH_ORDER)); + pcp->flags |= PCPF_PREV_FREE_HIGH_ORDER; + } else if (pcp->flags & PCPF_PREV_FREE_HIGH_ORDER) { + pcp->flags &= ~PCPF_PREV_FREE_HIGH_ORDER; + } high = nr_pcp_high(pcp, zone, free_high); if (pcp->count >= high) { free_pcppages_bulk(zone, nr_pcp_free(pcp, high, free_high), pcp, pindex); |