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authorPaolo Abeni <pabeni@redhat.com>2025-02-18 19:36:17 +0100
committerJakub Kicinski <kuba@kernel.org>2025-02-19 19:05:28 -0800
commit51fe9cb9213e18c4968385482c7ed20c0b1b21d3 (patch)
tree5c7569849044ce998a0402a3f0804dd1bca07317 /net
parentnet: dismiss sk_forward_alloc_get() (diff)
downloadwireguard-linux-51fe9cb9213e18c4968385482c7ed20c0b1b21d3.tar.xz
wireguard-linux-51fe9cb9213e18c4968385482c7ed20c0b1b21d3.zip
mptcp: dismiss __mptcp_rmem()
After the RX path refactor, it become a wrapper for sk_rmem_alloc access, with a slightly misleading name. Just drop it. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250218-net-next-mptcp-rx-path-refactor-v1-6-4a47d90d7998@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/mptcp/protocol.c8
-rw-r--r--net/mptcp/protocol.h11
2 files changed, 6 insertions, 13 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 080877f8daf7..c709f654cd5a 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -496,7 +496,7 @@ static void mptcp_cleanup_rbuf(struct mptcp_sock *msk, int copied)
bool cleanup, rx_empty;
cleanup = (space > 0) && (space >= (old_space << 1)) && copied;
- rx_empty = !__mptcp_rmem(sk) && copied;
+ rx_empty = !sk_rmem_alloc_get(sk) && copied;
mptcp_for_each_subflow(msk, subflow) {
struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
@@ -645,7 +645,7 @@ static bool __mptcp_move_skbs_from_subflow(struct mptcp_sock *msk,
WRITE_ONCE(tp->copied_seq, seq);
more_data_avail = mptcp_subflow_data_available(ssk);
- if (atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf) {
+ if (sk_rmem_alloc_get(sk) > sk->sk_rcvbuf) {
done = true;
break;
}
@@ -782,7 +782,7 @@ static void __mptcp_data_ready(struct sock *sk, struct sock *ssk)
__mptcp_rcvbuf_update(sk, ssk);
/* over limit? can't append more skbs to msk, Also, no need to wake-up*/
- if (__mptcp_rmem(sk) > sk->sk_rcvbuf)
+ if (sk_rmem_alloc_get(sk) > sk->sk_rcvbuf)
return;
/* Wake-up the reader only for in-sequence data */
@@ -2049,7 +2049,7 @@ static bool __mptcp_move_skbs(struct sock *sk)
mptcp_for_each_subflow(msk, subflow)
__mptcp_rcvbuf_update(sk, subflow->tcp_sock);
- if (__mptcp_rmem(sk) > sk->sk_rcvbuf)
+ if (sk_rmem_alloc_get(sk) > sk->sk_rcvbuf)
return false;
do {
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 613d556ed938..a1a077bae7b6 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -380,14 +380,6 @@ static inline void msk_owned_by_me(const struct mptcp_sock *msk)
#define mptcp_sk(ptr) container_of_const(ptr, struct mptcp_sock, sk.icsk_inet.sk)
#endif
-/* the msk socket don't use the backlog, also account for the bulk
- * free memory
- */
-static inline int __mptcp_rmem(const struct sock *sk)
-{
- return atomic_read(&sk->sk_rmem_alloc);
-}
-
static inline int mptcp_win_from_space(const struct sock *sk, int space)
{
return __tcp_win_from_space(mptcp_sk(sk)->scaling_ratio, space);
@@ -400,7 +392,8 @@ static inline int mptcp_space_from_win(const struct sock *sk, int win)
static inline int __mptcp_space(const struct sock *sk)
{
- return mptcp_win_from_space(sk, READ_ONCE(sk->sk_rcvbuf) - __mptcp_rmem(sk));
+ return mptcp_win_from_space(sk, READ_ONCE(sk->sk_rcvbuf) -
+ sk_rmem_alloc_get(sk));
}
static inline struct mptcp_data_frag *mptcp_send_head(const struct sock *sk)