From df95e795a722892a9e0603ce4b9b62fab9f02967 Mon Sep 17 00:00:00 2001 From: Dennis Zhou Date: Mon, 19 Jun 2017 19:28:32 -0400 Subject: percpu: add tracepoint support for percpu memory Add support for tracepoints to the following events: chunk allocation, chunk free, area allocation, area free, and area allocation failure. This should let us replay percpu memory requests and evaluate corresponding decisions. Signed-off-by: Dennis Zhou Signed-off-by: Tejun Heo --- mm/percpu-km.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'mm/percpu-km.c') diff --git a/mm/percpu-km.c b/mm/percpu-km.c index 3bbfa0c9d069..2b79e43c626f 100644 --- a/mm/percpu-km.c +++ b/mm/percpu-km.c @@ -73,6 +73,7 @@ static struct pcpu_chunk *pcpu_create_chunk(void) spin_unlock_irq(&pcpu_lock); pcpu_stats_chunk_alloc(); + trace_percpu_create_chunk(chunk->base_addr); return chunk; } @@ -82,6 +83,7 @@ static void pcpu_destroy_chunk(struct pcpu_chunk *chunk) const int nr_pages = pcpu_group_sizes[0] >> PAGE_SHIFT; pcpu_stats_chunk_dealloc(); + trace_percpu_destroy_chunk(chunk->base_addr); if (chunk && chunk->data) __free_pages(chunk->data, order_base_2(nr_pages)); -- cgit v1.2.3-55-g7522