linux-kernel - [PATCH net-next v20 09/14] net: rename skb_copy_to_page

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Message-ID: <20241008112049.2279307-10-linyunsheng@huawei.com>
Date: Tue, 8 Oct 2024 19:20:43 +0800
From: Yunsheng Lin <linyunsheng@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Yunsheng Lin
	<linyunsheng@...wei.com>, Alexander Duyck <alexander.duyck@...il.com>, Eric
 Dumazet <edumazet@...gle.com>, David Ahern <dsahern@...nel.org>
Subject: [PATCH net-next v20 09/14] net: rename skb_copy_to_page_nocache() helper

Rename skb_copy_to_page_nocache() to skb_add_frag_nocache()
to avoid calling virt_to_page() as we are about to pass virtual
address directly.

CC: Alexander Duyck <alexander.duyck@...il.com>
Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com>
---
 include/net/sock.h | 9 +++------
 net/ipv4/tcp.c     | 7 +++----
 net/kcm/kcmsock.c  | 7 +++----
 3 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index e282127092ab..e0b4e2daca5d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2192,15 +2192,12 @@ static inline int skb_add_data_nocache(struct sock *sk, struct sk_buff *skb,
 	return err;
 }
 
-static inline int skb_copy_to_page_nocache(struct sock *sk, struct iov_iter *from,
-					   struct sk_buff *skb,
-					   struct page *page,
-					   int off, int copy)
+static inline int skb_add_frag_nocache(struct sock *sk, struct iov_iter *from,
+				       struct sk_buff *skb, char *va, int copy)
 {
 	int err;
 
-	err = skb_do_copy_data_nocache(sk, skb, from, page_address(page) + off,
-				       copy, skb->len);
+	err = skb_do_copy_data_nocache(sk, skb, from, va, copy, skb->len);
 	if (err)
 		return err;
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 82cc4a5633ce..bc36f02cac0d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1219,10 +1219,9 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
 			if (!copy)
 				goto wait_for_space;
 
-			err = skb_copy_to_page_nocache(sk, &msg->msg_iter, skb,
-						       pfrag->page,
-						       pfrag->offset,
-						       copy);
+			err = skb_add_frag_nocache(sk, &msg->msg_iter, skb,
+						   page_address(pfrag->page) +
+						   pfrag->offset, copy);
 			if (err)
 				goto do_error;
 
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index d4118c796290..e74ad63f0189 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -856,10 +856,9 @@ static int kcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 			if (!sk_wmem_schedule(sk, copy))
 				goto wait_for_memory;
 
-			err = skb_copy_to_page_nocache(sk, &msg->msg_iter, skb,
-						       pfrag->page,
-						       pfrag->offset,
-						       copy);
+			err = skb_add_frag_nocache(sk, &msg->msg_iter, skb,
+						   page_address(pfrag->page) +
+						   pfrag->offset, copy);
 			if (err)
 				goto out_error;
 
-- 
2.33.0