From: Jonathan Lemon <jonathan.lemon@gmail.com>
To: <netdev@vger.kernel.org>, <edumazet@google.com>,
<willemdebruijn.kernel@gmail.com>
Cc: <kernel-team@fb.com>
Subject: [PATCH 10/12 v2 RFC] tap/tun: use skb_zcopy_set() instead of open coded assignment
Date: Mon, 21 Dec 2020 16:09:24 -0800 [thread overview]
Message-ID: <20201222000926.1054993-11-jonathan.lemon@gmail.com> (raw)
In-Reply-To: <20201222000926.1054993-1-jonathan.lemon@gmail.com>
From: Jonathan Lemon <bsd@fb.com>
Replace direct assignments with skb_zcopy_set() for clarity.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
---
drivers/net/tap.c | 3 +--
drivers/net/tun.c | 3 +--
drivers/vhost/net.c | 1 +
3 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index c2bcbf9218dc..7e7a4c7ca891 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -722,8 +722,7 @@ static ssize_t tap_get_user(struct tap_queue *q, void *msg_control,
tap = rcu_dereference(q->tap);
/* copy skb_ubuf_info for callback when skb has no error */
if (zerocopy) {
- skb_shinfo(skb)->destructor_arg = msg_control;
- skb_shinfo(skb)->zc_flags |= SKBZC_FRAGMENTS;
+ skb_zcopy_set(skb, msg_control, NULL);
} else if (msg_control) {
struct ubuf_info *uarg = msg_control;
uarg->callback(NULL, uarg, false);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index bad4b0229584..0844da91e2ed 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1814,8 +1814,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
/* copy skb_ubuf_info for callback when skb has no error */
if (zerocopy) {
- skb_shinfo(skb)->destructor_arg = msg_control;
- skb_shinfo(skb)->zc_flags |= SKBZC_FRAGMENTS;
+ skb_zcopy_set(skb, msg_control, NULL);
} else if (msg_control) {
struct ubuf_info *uarg = msg_control;
uarg->callback(NULL, uarg, false);
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index bf28d0b75c1b..174c05c90872 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -904,6 +904,7 @@ static void handle_tx_zerocopy(struct vhost_net *net, struct socket *sock)
ubuf->callback = vhost_zerocopy_callback;
ubuf->ctx = nvq->ubufs;
ubuf->desc = nvq->upend_idx;
+ ubuf->zc_flags = SKBZC_FRAGMENTS;
refcount_set(&ubuf->refcnt, 1);
msg.msg_control = &ctl;
ctl.type = TUN_MSG_UBUF;
--
2.24.1
next prev parent reply other threads:[~2020-12-22 0:10 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-22 0:09 [PATCH 00/12 v2 RFC] Generic zcopy_* functions Jonathan Lemon
2020-12-22 0:09 ` [PATCH 01/12 v2 RFC] net: group skb_shinfo zerocopy related bits together Jonathan Lemon
2020-12-22 14:43 ` Willem de Bruijn
2020-12-22 17:21 ` Jonathan Lemon
2020-12-22 22:26 ` Willem de Bruijn
2020-12-22 22:40 ` Jonathan Lemon
2020-12-22 22:56 ` Willem de Bruijn
2020-12-22 0:09 ` [PATCH 02/12 v2 RFC] skbuff: remove unused skb_zcopy_abort function Jonathan Lemon
2020-12-22 15:00 ` Willem de Bruijn
2020-12-22 0:09 ` [PATCH 03/12 v2 RFC] skbuff: simplify sock_zerocopy_put Jonathan Lemon
2020-12-22 14:43 ` Willem de Bruijn
2020-12-22 16:52 ` David Ahern
2020-12-22 16:56 ` David Ahern
2020-12-22 0:09 ` [PATCH 04/12 v2 RFC] skbuff: Push status and refcounts into sock_zerocopy_callback Jonathan Lemon
2020-12-22 14:43 ` Willem de Bruijn
2020-12-22 16:49 ` David Ahern
2020-12-22 17:48 ` Jonathan Lemon
2020-12-22 22:38 ` Willem de Bruijn
2020-12-22 0:09 ` [PATCH 05/12 v2 RFC] skbuff: replace sock_zerocopy_put() with skb_zcopy_put() Jonathan Lemon
2020-12-22 14:42 ` Willem de Bruijn
2020-12-22 17:19 ` Jonathan Lemon
2020-12-22 22:36 ` Willem de Bruijn
2020-12-22 0:09 ` [PATCH 06/12 v2 RFC] skbuff: replace sock_zerocopy_get with skb_zcopy_get Jonathan Lemon
2020-12-22 0:09 ` [PATCH 07/12 v2 RFC] skbuff: Add skb parameter to the ubuf zerocopy callback Jonathan Lemon
2020-12-22 0:09 ` [PATCH 08/12 v2 RFC] skbuff: Call sock_zerocopy_put_abort from skb_zcopy_put_abort Jonathan Lemon
2020-12-22 0:09 ` [PATCH 09/12 v2 RFC] skbuff: add zc_flags to ubuf_info for ubuf setup Jonathan Lemon
2020-12-22 15:00 ` Willem de Bruijn
2020-12-22 18:17 ` Jonathan Lemon
2020-12-22 18:29 ` Willem de Bruijn
2020-12-22 0:09 ` Jonathan Lemon [this message]
2020-12-22 0:09 ` [PATCH 11/12 v2 RFC] skbuff: Call skb_zcopy_clear() before unref'ing fragments Jonathan Lemon
2020-12-22 0:09 ` [PATCH 12/12 v2 RFC] skbuff: rename sock_zerocopy_* to msg_zerocopy_* Jonathan Lemon
2020-12-22 14:55 ` Willem de Bruijn
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