From nobody Fri Sep 20 01:44:48 2024 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C650412A16E; Mon, 15 Apr 2024 13:22:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.255 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713187341; cv=none; b=dTEatlYG/TVwq8rhPsHsTwxVCmrKQ3P/LtkkCuvcdddz+Wt5TcoBx86Ka8IELnbBRkbLb12o66WVT5vSmDwbyDhy0hEQPhZXTis/qax8lpTKHTATi8LEbGJVVnAZyXJz6moPS/58768Dnlga60kjZr512Tz+J7XzRfF6Sp2Od0w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713187341; c=relaxed/simple; bh=jMb+RBKehJctPcBa5upuyplr9XIV7Q0RuPuaTzq6AxY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qIx2LMUqS0NDNz9mamPvSUuTAKHGn4LLTDj2HGW1GqIkR6igLxY01qTuxifw8rfDe0N7xusaQHd6H/XKx2A5yAmp/JH2jzdXLgyM5fMc3qpvv4P6HVMZVdEOWrbgWlCOxy7qajWxsbsIgNR/lFcXfnoOfOLNiLjZnXz+6/gmjs0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.255 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.252]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4VJ76y3P1Zz1R5sP; Mon, 15 Apr 2024 21:19:22 +0800 (CST) Received: from dggpemm500005.china.huawei.com (unknown [7.185.36.74]) by mail.maildlp.com (Postfix) with ESMTPS id 57EB718007D; Mon, 15 Apr 2024 21:22:12 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by dggpemm500005.china.huawei.com (7.185.36.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Mon, 15 Apr 2024 21:22:12 +0800 From: Yunsheng Lin To: , , CC: , , Yunsheng Lin , Alexander Duyck , Andrew Morton , Eric Dumazet , Subject: [PATCH net-next v2 08/15] mm: page_frag: add two inline helper for page_frag API Date: Mon, 15 Apr 2024 21:19:33 +0800 Message-ID: <20240415131941.51153-9-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20240415131941.51153-1-linyunsheng@huawei.com> References: <20240415131941.51153-1-linyunsheng@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpemm500005.china.huawei.com (7.185.36.74) Content-Type: text/plain; charset="utf-8" Add two inline helpers for page_frag API to avoid calling accessing the field of 'struct page_frag_cache'. Signed-off-by: Yunsheng Lin --- include/linux/page_frag_cache.h | 10 ++++++++++ mm/page_frag_test.c | 2 +- net/core/skbuff.c | 4 ++-- 3 files changed, 13 insertions(+), 3 deletions(-) diff --git a/include/linux/page_frag_cache.h b/include/linux/page_frag_cach= e.h index 9d5d86b2d3ab..fe5faa80b6c3 100644 --- a/include/linux/page_frag_cache.h +++ b/include/linux/page_frag_cache.h @@ -23,6 +23,16 @@ struct page_frag_cache { bool pfmemalloc; }; =20 +static inline void page_frag_cache_init(struct page_frag_cache *nc) +{ + nc->va =3D NULL; +} + +static inline bool page_frag_cache_is_pfmemalloc(struct page_frag_cache *n= c) +{ + return !!nc->pfmemalloc; +} + void page_frag_cache_drain(struct page_frag_cache *nc); void __page_frag_cache_drain(struct page *page, unsigned int count); void *page_frag_alloc_va(struct page_frag_cache *nc, unsigned int fragsz, diff --git a/mm/page_frag_test.c b/mm/page_frag_test.c index cab05b8a2e77..20756b28df4a 100644 --- a/mm/page_frag_test.c +++ b/mm/page_frag_test.c @@ -318,7 +318,7 @@ static int __init page_frag_test_init(void) u64 duration; int ret; =20 - test_frag.va =3D NULL; + page_frag_cache_init(&test_frag); atomic_set(&nthreads, 2); init_completion(&wait); =20 diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 139a193853cc..cdbfdf651001 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -743,12 +743,12 @@ struct sk_buff *__netdev_alloc_skb(struct net_device = *dev, unsigned int len, if (in_hardirq() || irqs_disabled()) { nc =3D this_cpu_ptr(&netdev_alloc_cache); data =3D page_frag_alloc_va(nc, len, gfp_mask); - pfmemalloc =3D nc->pfmemalloc; + pfmemalloc =3D page_frag_cache_is_pfmemalloc(nc); } else { local_bh_disable(); nc =3D this_cpu_ptr(&napi_alloc_cache.page); data =3D page_frag_alloc_va(nc, len, gfp_mask); - pfmemalloc =3D nc->pfmemalloc; + pfmemalloc =3D page_frag_cache_is_pfmemalloc(nc); local_bh_enable(); } =20 --=20 2.33.0