From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2ED5C47082 for ; Sat, 5 Jun 2021 07:51:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3FA3D61358 for ; Sat, 5 Jun 2021 07:51:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3FA3D61358 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7D5A16B006C; Sat, 5 Jun 2021 03:51:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 784EF6B0070; Sat, 5 Jun 2021 03:51:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5D9236B0071; Sat, 5 Jun 2021 03:51:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0049.hostedemail.com [216.40.44.49]) by kanga.kvack.org (Postfix) with ESMTP id 2E03E6B006C for ; Sat, 5 Jun 2021 03:51:16 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id C774D6D8E for ; Sat, 5 Jun 2021 07:51:15 +0000 (UTC) X-FDA: 78218899710.13.D88C68C Received: from mail-lf1-f52.google.com (mail-lf1-f52.google.com [209.85.167.52]) by imf05.hostedemail.com (Postfix) with ESMTP id 438CFE0004E7 for ; Sat, 5 Jun 2021 07:51:14 +0000 (UTC) Received: by mail-lf1-f52.google.com with SMTP id f11so17484374lfq.4 for ; Sat, 05 Jun 2021 00:51:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=d5R/Y787deGXI27/C5ydk9yyfai3EZKj2N6INNdZwRE=; b=XkP5epXrwV5Orsta38YDsfJ0UrfZuSnDnvrWXp+r5WZqQSet/uvGW5aW4c3cCaktGU K+6ZwYEAXt0zsWrGYCsFagcQK6t/SrvuVfR4ZhYpLhaLntjr/JnNIPDt3iTyN+ztWQ1w K0Mdi5ScdoWZBR7K+Lh2y1/CQw5oVNcHDM1S3IXme9OnOKXdElWWHzpRCWUD+qbgk/EA n/p9UtsVAH1Z5fypOB9ZBTaaHwzh2ObaR8UYvVrEpdkCizeI2MjhmpkCDdgWbz1P2CK6 BSDmNqOPngnDRZtb1HZ/iprYL+9qT93+S2Cwe0zhz4tjB914DaKpTyoRF8I5Gd/mYMV3 uOfg== X-Gm-Message-State: AOAM5310Pb4jcOCDauWHNBv5lZcV5Tzc3+oM9teAeX9FLrREmkcxhdj4 AWjQDu8CtIp7MfB49D89OzcVNwL/lJe3kw== X-Google-Smtp-Source: ABdhPJxkkRYKIDGRuSQ777kLhj0RtZhQRhx15wdcBmj23ZVlKk+eQFKyKCbrQbL7WpTDvESKUH4JbA== X-Received: by 2002:a17:907:2044:: with SMTP id pg4mr5491887ejb.447.1622831663585; Fri, 04 Jun 2021 11:34:23 -0700 (PDT) Received: from msft-t490s.teknoraver.net (net-37-119-128-179.cust.vodafonedsl.it. [37.119.128.179]) by smtp.gmail.com with ESMTPSA id k12sm3732039edi.87.2021.06.04.11.34.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 11:34:23 -0700 (PDT) From: Matteo Croce To: netdev@vger.kernel.org, linux-mm@kvack.org Cc: Ayush Sawal , Vinay Kumar Yadav , Rohit Maheshwari , "David S. Miller" , Jakub Kicinski , Thomas Petazzoni , Marcin Wojtas , Russell King , Mirko Lindner , Stephen Hemminger , Tariq Toukan , Jesper Dangaard Brouer , Ilias Apalodimas , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Boris Pismenny , Arnd Bergmann , Andrew Morton , "Peter Zijlstra (Intel)" , Vlastimil Babka , Yu Zhao , Will Deacon , Fenghua Yu , Roman Gushchin , Hugh Dickins , Peter Xu , Jason Gunthorpe , Jonathan Lemon , Alexander Lobakin , Cong Wang , wenxu , Kevin Hao , Jakub Sitnicki , Marco Elver , Willem de Bruijn , Miaohe Lin , Yunsheng Lin , Guillaume Nault , linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, Matthew Wilcox , Eric Dumazet , David Ahern , Lorenzo Bianconi , Saeed Mahameed , Andrew Lunn , Paolo Abeni , Sven Auhagen Subject: [PATCH net-next v7 2/5] skbuff: add a parameter to __skb_frag_unref Date: Fri, 4 Jun 2021 20:33:46 +0200 Message-Id: <20210604183349.30040-3-mcroce@linux.microsoft.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210604183349.30040-1-mcroce@linux.microsoft.com> References: <20210604183349.30040-1-mcroce@linux.microsoft.com> MIME-Version: 1.0 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 438CFE0004E7 Authentication-Results: imf05.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=linux.microsoft.com (policy=none); spf=pass (imf05.hostedemail.com: domain of technoboy85@gmail.com designates 209.85.167.52 as permitted sender) smtp.mailfrom=technoboy85@gmail.com X-Stat-Signature: jzrtxxjqwhsbqr3kgktt6i7h78ftss66 X-HE-Tag: 1622879474-989053 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: From: Matteo Croce This is a prerequisite patch, the next one is enabling recycling of skbs and fragments. Add an extra argument on __skb_frag_unref() to handle recycling, and update the current users of the function with that. Signed-off-by: Matteo Croce --- drivers/net/ethernet/marvell/sky2.c | 2 +- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +- include/linux/skbuff.h | 8 +++++--- net/core/skbuff.c | 4 ++-- net/tls/tls_device.c | 2 +- 5 files changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/m= arvell/sky2.c index 324c280cc22c..8b8bff59c8fe 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2503,7 +2503,7 @@ static void skb_put_frags(struct sk_buff *skb, unsi= gned int hdr_space, =20 if (length =3D=3D 0) { /* don't need this page */ - __skb_frag_unref(frag); + __skb_frag_unref(frag, false); --skb_shinfo(skb)->nr_frags; } else { size =3D min(length, (unsigned) PAGE_SIZE); diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/eth= ernet/mellanox/mlx4/en_rx.c index e35e4d7ef4d1..cea62b8f554c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -526,7 +526,7 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_pr= iv *priv, fail: while (nr > 0) { nr--; - __skb_frag_unref(skb_shinfo(skb)->frags + nr); + __skb_frag_unref(skb_shinfo(skb)->frags + nr, false); } return 0; } diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index dbf820a50a39..7fcfea7e7b21 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3081,10 +3081,12 @@ static inline void skb_frag_ref(struct sk_buff *s= kb, int f) /** * __skb_frag_unref - release a reference on a paged fragment. * @frag: the paged fragment + * @recycle: recycle the page if allocated via page_pool * - * Releases a reference on the paged fragment @frag. + * Releases a reference on the paged fragment @frag + * or recycles the page via the page_pool API. */ -static inline void __skb_frag_unref(skb_frag_t *frag) +static inline void __skb_frag_unref(skb_frag_t *frag, bool recycle) { put_page(skb_frag_page(frag)); } @@ -3098,7 +3100,7 @@ static inline void __skb_frag_unref(skb_frag_t *fra= g) */ static inline void skb_frag_unref(struct sk_buff *skb, int f) { - __skb_frag_unref(&skb_shinfo(skb)->frags[f]); + __skb_frag_unref(&skb_shinfo(skb)->frags[f], false); } =20 /** diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 3ad22870298c..12b7e90dd2b5 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -664,7 +664,7 @@ static void skb_release_data(struct sk_buff *skb) skb_zcopy_clear(skb, true); =20 for (i =3D 0; i < shinfo->nr_frags; i++) - __skb_frag_unref(&shinfo->frags[i]); + __skb_frag_unref(&shinfo->frags[i], false); =20 if (shinfo->frag_list) kfree_skb_list(shinfo->frag_list); @@ -3495,7 +3495,7 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *= skb, int shiftlen) fragto =3D &skb_shinfo(tgt)->frags[merge]; =20 skb_frag_size_add(fragto, skb_frag_size(fragfrom)); - __skb_frag_unref(fragfrom); + __skb_frag_unref(fragfrom, false); } =20 /* Reposition in the original skb */ diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 76a6f8c2eec4..ad11db2c4f63 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -127,7 +127,7 @@ static void destroy_record(struct tls_record_info *re= cord) int i; =20 for (i =3D 0; i < record->num_frags; i++) - __skb_frag_unref(&record->frags[i]); + __skb_frag_unref(&record->frags[i], false); kfree(record); } =20 --=20 2.31.1