netdev - [PATCH 1/3] skbuff: use kvfree() to deallocate head

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Date:   Thu, 22 Aug 2019 10:48:20 +0000
From:   Jan Dakinevich <jan.dakinevich@...tuozzo.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Denis Lunev <den@...tuozzo.com>,
        Konstantin Khorenko <khorenko@...tuozzo.com>,
        "jan.dakinevich@...il.com" <jan.dakinevich@...il.com>,
        Jan Dakinevich <jan.dakinevich@...tuozzo.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Alexey Kuznetsov (C)" <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        Johannes Berg <johannes.berg@...el.com>,
        David Ahern <dsahern@...il.com>,
        Christian Brauner <christian@...uner.io>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Simon Horman <simon.horman@...ronome.com>,
        John Hurley <john.hurley@...ronome.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Eric Dumazet <edumazet@...gle.com>,
        Li RongQing <lirongqing@...du.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Taehee Yoo <ap420073@...il.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Dmitry Safonov <dima@...sta.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
        "coreteam@...filter.org" <coreteam@...filter.org>
Subject: [PATCH 1/3] skbuff: use kvfree() to deallocate head

If skb buffer was allocated using vmalloc() it will make simple its
further deallocation.

Signed-off-by: Jan Dakinevich <jan.dakinevich@...tuozzo.com>
---
 net/core/skbuff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0338820..55eac01 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -588,7 +588,7 @@ static void skb_free_head(struct sk_buff *skb)
 	if (skb->head_frag)
 		skb_free_frag(head);
 	else
-		kfree(head);
+		kvfree(head);
 }
 
 static void skb_release_data(struct sk_buff *skb)
-- 
2.1.4