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-rw-r--r--net/ipv4/tcp_bpf.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index c501c329b1db..cf9c3e8f7ccb 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -278,7 +278,7 @@ static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock,
{
bool cork = false, enospc = sk_msg_full(msg);
struct sock *sk_redir;
- u32 tosend, delta = 0;
+ u32 tosend, origsize, sent, delta = 0;
u32 eval = __SK_NONE;
int ret;
@@ -333,10 +333,12 @@ more_data:
cork = true;
psock->cork = NULL;
}
- sk_msg_return(sk, msg, msg->sg.size);
+ sk_msg_return(sk, msg, tosend);
release_sock(sk);
+ origsize = msg->sg.size;
ret = tcp_bpf_sendmsg_redir(sk_redir, msg, tosend, flags);
+ sent = origsize - msg->sg.size;
if (eval == __SK_REDIRECT)
sock_put(sk_redir);
@@ -375,7 +377,7 @@ more_data:
msg->sg.data[msg->sg.start].page_link &&
msg->sg.data[msg->sg.start].length) {
if (eval == __SK_REDIRECT)
- sk_mem_charge(sk, msg->sg.size);
+ sk_mem_charge(sk, tosend - sent);
goto more_data;
}
}