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Miller" , Jakub Kicinski From: Alexander Lobakin Cc: David Rientjes , Yisen Zhuang , Salil Mehta , Jesse Brandeburg , Tony Nguyen , Saeed Mahameed , Leon Romanovsky , Andrew Morton , Jesper Dangaard Brouer , Ilias Apalodimas , Jonathan Lemon , Willem de Bruijn , Randy Dunlap , Pablo Neira Ayuso , Dexuan Cui , Jakub Sitnicki , Marco Elver , Paolo Abeni , Alexander Lobakin , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-rdma@vger.kernel.org, linux-mm@kvack.org Reply-To: Alexander Lobakin Subject: [PATCH v2 net-next 4/4] net: page_pool: simplify page recycling condition tests Message-ID: <20210127201031.98544-5-alobakin@pm.me> In-Reply-To: <20210127201031.98544-1-alobakin@pm.me> References: <20210127201031.98544-1-alobakin@pm.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: pool_page_reusable() is a leftover from pre-NUMA-aware times. For now, this function is just a redundant wrapper over page_is_pfmemalloc(), so Inline it into its sole call site. Signed-off-by: Alexander Lobakin Acked-by: Jesper Dangaard Brouer Reviewed-by: Ilias Apalodimas --- net/core/page_pool.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/net/core/page_pool.c b/net/core/page_pool.c index f3c690b8c8e3..ad8b0707af04 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -350,14 +350,6 @@ static bool page_pool_recycle_in_cache(struct page *pa= ge, =09return true; } =20 -/* page is NOT reusable when: - * 1) allocated when system is under some pressure. (page_is_pfmemalloc) - */ -static bool pool_page_reusable(struct page_pool *pool, struct page *page) -{ -=09return !page_is_pfmemalloc(page); -} - /* If the page refcnt =3D=3D 1, this will try to recycle the page. * if PP_FLAG_DMA_SYNC_DEV is set, we'll try to sync the DMA area for * the configured size min(dma_sync_size, pool->max_len). @@ -373,9 +365,11 @@ __page_pool_put_page(struct page_pool *pool, struct pa= ge *page, =09 * regular page allocator APIs. =09 * =09 * refcnt =3D=3D 1 means page_pool owns page, and can recycle it. +=09 * +=09 * page is NOT reusable when allocated when system is under +=09 * some pressure. (page_is_pfmemalloc) =09 */ -=09if (likely(page_ref_count(page) =3D=3D 1 && -=09=09 pool_page_reusable(pool, page))) { +=09if (likely(page_ref_count(page) =3D=3D 1 && !page_is_pfmemalloc(page)))= { =09=09/* Read barrier done in page_ref_count / READ_ONCE */ =20 =09=09if (pool->p.flags & PP_FLAG_DMA_SYNC_DEV) --=20 2.30.0