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Message-ID: <20201230191244.610449-10-jonathan.lemon@gmail.com>
Date: Wed, 30 Dec 2020 11:12:41 -0800
From: Jonathan Lemon <jonathan.lemon@...il.com>
To: <netdev@...r.kernel.org>, <willemdebruijn.kernel@...il.com>,
<edumazet@...gle.com>, <dsahern@...il.com>
CC: <kernel-team@...com>
Subject: [RFC PATCH v3 09/12] skbuff: rename sock_zerocopy_* to msg_zerocopy_*
From: Jonathan Lemon <bsd@...com>
At Willem's suggestion, rename the sock_zerocopy_* functions
so that they match the MSG_ZEROCOPY flag, which makes it clear
they are specific to this zerocopy implementation.
Signed-off-by: Jonathan Lemon <jonathan.lemon@...il.com>
Acked-by: Willem de Bruijn <willemb@...gle.com>
---
include/linux/skbuff.h | 16 ++++++++--------
net/core/skbuff.c | 28 ++++++++++++++--------------
net/ipv4/ip_output.c | 2 +-
net/ipv4/tcp.c | 2 +-
net/ipv6/ip6_output.c | 2 +-
5 files changed, 25 insertions(+), 25 deletions(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9f7393167f0a..3c34c75ab004 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -488,13 +488,13 @@ struct ubuf_info {
int mm_account_pinned_pages(struct mmpin *mmp, size_t size);
void mm_unaccount_pinned_pages(struct mmpin *mmp);
-struct ubuf_info *sock_zerocopy_alloc(struct sock *sk, size_t size);
-struct ubuf_info *sock_zerocopy_realloc(struct sock *sk, size_t size,
- struct ubuf_info *uarg);
+struct ubuf_info *msg_zerocopy_alloc(struct sock *sk, size_t size);
+struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
+ struct ubuf_info *uarg);
-void sock_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref);
+void msg_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref);
-void sock_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
+void msg_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
bool success);
int skb_zerocopy_iter_dgram(struct sk_buff *skb, struct msghdr *msg, int len);
@@ -1481,8 +1481,8 @@ static inline void skb_zcopy_put(struct ubuf_info *uarg)
static inline void skb_zcopy_put_abort(struct ubuf_info *uarg, bool have_uref)
{
if (uarg) {
- if (uarg->callback == sock_zerocopy_callback)
- sock_zerocopy_put_abort(uarg, have_uref);
+ if (uarg->callback == msg_zerocopy_callback)
+ msg_zerocopy_put_abort(uarg, have_uref);
else if (have_uref)
skb_zcopy_put(uarg);
}
@@ -2776,7 +2776,7 @@ static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask)
if (likely(!skb_zcopy(skb)))
return 0;
if (!skb_zcopy_is_nouarg(skb) &&
- skb_uarg(skb)->callback == sock_zerocopy_callback)
+ skb_uarg(skb)->callback == msg_zerocopy_callback)
return 0;
return skb_copy_ubufs(skb, gfp_mask);
}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 6d031ed99182..d520168accf9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1094,7 +1094,7 @@ void mm_unaccount_pinned_pages(struct mmpin *mmp)
}
EXPORT_SYMBOL_GPL(mm_unaccount_pinned_pages);
-struct ubuf_info *sock_zerocopy_alloc(struct sock *sk, size_t size)
+struct ubuf_info *msg_zerocopy_alloc(struct sock *sk, size_t size)
{
struct ubuf_info *uarg;
struct sk_buff *skb;
@@ -1114,7 +1114,7 @@ struct ubuf_info *sock_zerocopy_alloc(struct sock *sk, size_t size)
return NULL;
}
- uarg->callback = sock_zerocopy_callback;
+ uarg->callback = msg_zerocopy_callback;
uarg->id = ((u32)atomic_inc_return(&sk->sk_zckey)) - 1;
uarg->len = 1;
uarg->bytelen = size;
@@ -1124,15 +1124,15 @@ struct ubuf_info *sock_zerocopy_alloc(struct sock *sk, size_t size)
return uarg;
}
-EXPORT_SYMBOL_GPL(sock_zerocopy_alloc);
+EXPORT_SYMBOL_GPL(msg_zerocopy_alloc);
static inline struct sk_buff *skb_from_uarg(struct ubuf_info *uarg)
{
return container_of((void *)uarg, struct sk_buff, cb);
}
-struct ubuf_info *sock_zerocopy_realloc(struct sock *sk, size_t size,
- struct ubuf_info *uarg)
+struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
+ struct ubuf_info *uarg)
{
if (uarg) {
const u32 byte_limit = 1 << 19; /* limit to a few TSO */
@@ -1171,9 +1171,9 @@ struct ubuf_info *sock_zerocopy_realloc(struct sock *sk, size_t size,
}
new_alloc:
- return sock_zerocopy_alloc(sk, size);
+ return msg_zerocopy_alloc(sk, size);
}
-EXPORT_SYMBOL_GPL(sock_zerocopy_realloc);
+EXPORT_SYMBOL_GPL(msg_zerocopy_realloc);
static bool skb_zerocopy_notify_extend(struct sk_buff *skb, u32 lo, u16 len)
{
@@ -1195,7 +1195,7 @@ static bool skb_zerocopy_notify_extend(struct sk_buff *skb, u32 lo, u16 len)
return true;
}
-static void __sock_zerocopy_callback(struct ubuf_info *uarg)
+static void __msg_zerocopy_callback(struct ubuf_info *uarg)
{
struct sk_buff *tail, *skb = skb_from_uarg(uarg);
struct sock_exterr_skb *serr;
@@ -1243,17 +1243,17 @@ static void __sock_zerocopy_callback(struct ubuf_info *uarg)
sock_put(sk);
}
-void sock_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
+void msg_zerocopy_callback(struct sk_buff *skb, struct ubuf_info *uarg,
bool success)
{
uarg->zerocopy = uarg->zerocopy & success;
if (refcount_dec_and_test(&uarg->refcnt))
- __sock_zerocopy_callback(uarg);
+ __msg_zerocopy_callback(uarg);
}
-EXPORT_SYMBOL_GPL(sock_zerocopy_callback);
+EXPORT_SYMBOL_GPL(msg_zerocopy_callback);
-void sock_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref)
+void msg_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref)
{
struct sock *sk = skb_from_uarg(uarg)->sk;
@@ -1261,9 +1261,9 @@ void sock_zerocopy_put_abort(struct ubuf_info *uarg, bool have_uref)
uarg->len--;
if (have_uref)
- sock_zerocopy_callback(NULL, uarg, true);
+ msg_zerocopy_callback(NULL, uarg, true);
}
-EXPORT_SYMBOL_GPL(sock_zerocopy_put_abort);
+EXPORT_SYMBOL_GPL(msg_zerocopy_put_abort);
int skb_zerocopy_iter_dgram(struct sk_buff *skb, struct msghdr *msg, int len)
{
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 65f2299fd682..d8eb8b827794 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1018,7 +1018,7 @@ static int __ip_append_data(struct sock *sk,
csummode = CHECKSUM_PARTIAL;
if (flags & MSG_ZEROCOPY && length && sock_flag(sk, SOCK_ZEROCOPY)) {
- uarg = sock_zerocopy_realloc(sk, length, skb_zcopy(skb));
+ uarg = msg_zerocopy_realloc(sk, length, skb_zcopy(skb));
if (!uarg)
return -ENOBUFS;
extra_uref = !skb_zcopy(skb); /* only ref on new uarg */
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index fb58215972ba..2882d520f5b1 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1217,7 +1217,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
if (flags & MSG_ZEROCOPY && size && sock_flag(sk, SOCK_ZEROCOPY)) {
skb = tcp_write_queue_tail(sk);
- uarg = sock_zerocopy_realloc(sk, size, skb_zcopy(skb));
+ uarg = msg_zerocopy_realloc(sk, size, skb_zcopy(skb));
if (!uarg) {
err = -ENOBUFS;
goto out_err;
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index c8c87891533a..f59cfa39686a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1471,7 +1471,7 @@ static int __ip6_append_data(struct sock *sk,
csummode = CHECKSUM_PARTIAL;
if (flags & MSG_ZEROCOPY && length && sock_flag(sk, SOCK_ZEROCOPY)) {
- uarg = sock_zerocopy_realloc(sk, length, skb_zcopy(skb));
+ uarg = msg_zerocopy_realloc(sk, length, skb_zcopy(skb));
if (!uarg)
return -ENOBUFS;
extra_uref = !skb_zcopy(skb); /* only ref on new uarg */
--
2.24.1
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