From: Jie Wang <wangjie125@huawei.com>
Date: Thu, 12 May 2022 06:56:31 +0000 (+0800)
Subject: net: page_pool: add page allocation stats for two fast page allocate path
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0f6deac3a07958195173119627502350925dce78;p=linux.git

net: page_pool: add page allocation stats for two fast page allocate path

Currently If use page pool allocation stats to analysis a RX performance
degradation problem. These stats only count for pages allocate from
page_pool_alloc_pages. But nic drivers such as hns3 use
page_pool_dev_alloc_frag to allocate pages, so page stats in this API
should also be counted.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index bdbadfaee867b..f18e6e771993d 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -704,8 +704,10 @@ struct page *page_pool_alloc_frag(struct page_pool *pool,
 
 	if (page && *offset + size > max_size) {
 		page = page_pool_drain_frag(pool, page);
-		if (page)
+		if (page) {
+			alloc_stat_inc(pool, fast);
 			goto frag_reset;
+		}
 	}
 
 	if (!page) {
@@ -727,6 +729,7 @@ frag_reset:
 
 	pool->frag_users++;
 	pool->frag_offset = *offset + size;
+	alloc_stat_inc(pool, fast);
 	return page;
 }
 EXPORT_SYMBOL(page_pool_alloc_frag);