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Message-Id: <20230111042214.907030-7-willy@infradead.org>
Date: Wed, 11 Jan 2023 04:21:54 +0000
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: Jesper Dangaard Brouer <hawk@...nel.org>,
Ilias Apalodimas <ilias.apalodimas@...aro.org>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
netdev@...r.kernel.org, linux-mm@...ck.org,
Shakeel Butt <shakeelb@...gle.com>,
Jesper Dangaard Brouer <brouer@...hat.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>
Subject: [PATCH v3 06/26] page_pool: Convert page_pool_return_page() to page_pool_return_netmem()
Removes a call to compound_head(), saving 464 bytes of kernel text
as page_pool_return_page() is inlined seven times.
Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
Acked-by: Jesper Dangaard Brouer <brouer@...hat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
---
net/core/page_pool.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index 4e985502c569..b606952773a6 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -220,7 +220,13 @@ struct page_pool *page_pool_create(const struct page_pool_params *params)
}
EXPORT_SYMBOL(page_pool_create);
-static void page_pool_return_page(struct page_pool *pool, struct page *page);
+static void page_pool_return_netmem(struct page_pool *pool, struct netmem *nm);
+
+static inline
+void page_pool_return_page(struct page_pool *pool, struct page *page)
+{
+ page_pool_return_netmem(pool, page_netmem(page));
+}
noinline
static struct page *page_pool_refill_alloc_cache(struct page_pool *pool)
@@ -499,11 +505,11 @@ void page_pool_release_netmem(struct page_pool *pool, struct netmem *nmem)
EXPORT_SYMBOL(page_pool_release_netmem);
/* Return a page to the page allocator, cleaning up our state */
-static void page_pool_return_page(struct page_pool *pool, struct page *page)
+static void page_pool_return_netmem(struct page_pool *pool, struct netmem *nmem)
{
- page_pool_release_page(pool, page);
+ page_pool_release_netmem(pool, nmem);
- put_page(page);
+ netmem_put(nmem);
/* An optimization would be to call __free_pages(page, pool->p.order)
* knowing page is not part of page-cache (thus avoiding a
* __page_cache_release() call).
--
2.35.1
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