From: Jonathan Lemon <jonathan.lemon@gmail.com>
To: <netdev@vger.kernel.org>, <willemdebruijn.kernel@gmail.com>,
<edumazet@google.com>, <dsahern@gmail.com>
Cc: <kernel-team@fb.com>
Subject: [RFC PATCH v3 08/12] skbuff: Call skb_zcopy_clear() before unref'ing fragments
Date: Wed, 30 Dec 2020 11:12:40 -0800 [thread overview]
Message-ID: <20201230191244.610449-9-jonathan.lemon@gmail.com> (raw)
In-Reply-To: <20201230191244.610449-1-jonathan.lemon@gmail.com>
From: Jonathan Lemon <bsd@fb.com>
RX zerocopy fragment pages which are not allocated from the
system page pool require special handling. Give the callback
in skb_zcopy_clear() a chance to process them first.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
---
net/core/skbuff.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 5b9cd528d6a6..6d031ed99182 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -605,13 +605,14 @@ static void skb_release_data(struct sk_buff *skb)
&shinfo->dataref))
return;
+ skb_zcopy_clear(skb, true);
+
for (i = 0; i < shinfo->nr_frags; i++)
__skb_frag_unref(&shinfo->frags[i]);
if (shinfo->frag_list)
kfree_skb_list(shinfo->frag_list);
- skb_zcopy_clear(skb, true);
skb_free_head(skb);
}
--
2.24.1
next prev parent reply other threads:[~2020-12-30 19:14 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 19:12 [RFC PATCH v3 00/12] Generic zcopy_* functions Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 01/12] skbuff: remove unused skb_zcopy_abort function Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 02/12] skbuff: simplify sock_zerocopy_put Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 03/12] skbuff: Push status and refcounts into sock_zerocopy_callback Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 04/12] skbuff: replace sock_zerocopy_put() with skb_zcopy_put() Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 05/12] skbuff: replace sock_zerocopy_get with skb_zcopy_get Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 06/12] skbuff: Add skb parameter to the ubuf zerocopy callback Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 07/12] skbuff: Call sock_zerocopy_put_abort from skb_zcopy_put_abort Jonathan Lemon
2020-12-30 19:12 ` Jonathan Lemon [this message]
2020-12-30 19:12 ` [RFC PATCH v3 09/12] skbuff: rename sock_zerocopy_* to msg_zerocopy_* Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 10/12] net: group skb_shinfo zerocopy related bits together Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 11/12] skbuff: add flags to ubuf_info for ubuf setup Jonathan Lemon
2020-12-30 19:12 ` [RFC PATCH v3 12/12] tap/tun: add skb_zcopy_init() helper for initialization Jonathan Lemon
2021-01-04 17:39 ` [RFC PATCH v3 00/12] Generic zcopy_* functions Willem de Bruijn
2021-01-05 4:17 ` Jonathan Lemon
2021-01-05 4:22 ` Willem de Bruijn
2021-01-05 5:38 ` Jonathan Lemon
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