Commit 0f6deac3 authored by Jie Wang's avatar Jie Wang Committed by David S. Miller
Browse files

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: default avatarJie Wang <wangjie125@huawei.com>
Signed-off-by: default avatarGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a19cef45

net/core/page_pool.c

+4 −1
Original line number Diff line number Diff line
@@ -704,9 +704,11 @@ 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) {

		page = page_pool_alloc_pages(pool, gfp);
@@ -727,6 +729,7 @@ struct page *page_pool_alloc_frag(struct page_pool *pool, 


	pool->frag_users++;

	pool->frag_offset = *offset + size;

	alloc_stat_inc(pool, fast);

	return page;

}

EXPORT_SYMBOL(page_pool_alloc_frag);