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Date: Sat, 29 Jan 2022 15:38:56 -0800 From: Joe Damato <jdamato@...tly.com> To: netdev@...r.kernel.org, kuba@...nel.org, ilias.apalodimas@...aro.org, davem@...emloft.net, hawk@...nel.org Cc: Joe Damato <jdamato@...tly.com> Subject: [net-next v2 06/10] page_pool: Add slow path high order allocation stat Track high order allocations in the slow path which cause an interaction with the buddy allocator. Signed-off-by: Joe Damato <jdamato@...tly.com> --- include/net/page_pool.h | 1 + net/core/page_pool.c | 1 + 2 files changed, 2 insertions(+) diff --git a/include/net/page_pool.h b/include/net/page_pool.h index ab67e86..f59b8a9 100644 --- a/include/net/page_pool.h +++ b/include/net/page_pool.h @@ -145,6 +145,7 @@ struct page_pool_stats { struct { u64 fast; /* fast path allocations */ u64 slow; /* slow-path order-0 allocations */ + u64 slow_high_order; /* slow-path high order allocations */ } alloc; }; diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 554a40e..24306d6 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -254,6 +254,7 @@ static struct page *__page_pool_alloc_page_order(struct page_pool *pool, return NULL; } + page_pool_stat_alloc_inc(slow_high_order); page_pool_set_pp_info(pool, page); /* Track how many pages are held 'in-flight' */ -- 2.7.4
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