| Message ID | 20200724011127.363638-13-mathew.j.martineau@linux.intel.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | Matthieu Baerts |
| Headers | show |
| Series | DATA_FIN support | expand |
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 65aa2b9df721..5d992f78e6bf 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -793,7 +793,7 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk, out: if (!retransmission) pfrag->offset += frag_truesize; - *write_seq += ret; + WRITE_ONCE(*write_seq, *write_seq + ret); mptcp_subflow_ctx(ssk)->rel_write_seq += ret; return ret;
The MPTCP socket's write_seq member can be read without the msk lock held, so use WRITE_ONCE() to store it. Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> --- net/mptcp/protocol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)