diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2021-06-21 15:54:35 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-22 09:57:45 -0700 |
| commit | 3c90e377a1e87a35a7f868ed1c53ea4d62379a8d (patch) | |
| tree | b82f0e9506a3897111f78b846ddc64e3310b4656 /net/mptcp/protocol.c | |
| parent | 75e908c33615999abe1f3a8429d25dea30d28e4e (diff) | |
mptcp: don't clear MPTCP_DATA_READY in sk_wait_event()
If we don't flush entirely the receive queue, we need set
again such bit later. We can simply avoid clearing it.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.c')
| -rw-r--r-- | net/mptcp/protocol.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index c47ce074737d..3e088e9d20fd 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1715,7 +1715,7 @@ static void mptcp_wait_data(struct sock *sk, long *timeo) sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); sk_wait_event(sk, timeo, - test_and_clear_bit(MPTCP_DATA_READY, &msk->flags), &wait); + test_bit(MPTCP_DATA_READY, &msk->flags), &wait); sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); remove_wait_queue(sk_sleep(sk), &wait); @@ -2039,10 +2039,8 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, */ if (unlikely(__mptcp_move_skbs(msk))) set_bit(MPTCP_DATA_READY, &msk->flags); - } else if (unlikely(!test_bit(MPTCP_DATA_READY, &msk->flags))) { - /* data to read but mptcp_wait_data() cleared DATA_READY */ - set_bit(MPTCP_DATA_READY, &msk->flags); } + out_err: if (cmsg_flags && copied >= 0) { if (cmsg_flags & MPTCP_CMSG_TS) |