diff options
| author | Eric Dumazet <edumazet@google.com> | 2017-04-18 09:45:52 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-24 11:00:12 +0100 |
| commit | 5f63431093a2be7ac048f6ce072e3606eb70c87c (patch) | |
| tree | ccb7d8caff51232a46c49c35c96acfe35d0484c2 /drivers/net/ethernet/intel | |
| parent | 76441e151c0a4950cdbf014c2377895f48fba2c6 (diff) | |
tcp: remove poll() flakes with FastOpen
[ Upstream commit 0f9fa831aecfc297b7b45d4f046759bcefcf87f0 ]
When using TCP FastOpen for an active session, we send one wakeup event
from tcp_finish_connect(), right before the data eventually contained in
the received SYNACK is queued to sk->sk_receive_queue.
This means that depending on machine load or luck, poll() users
might receive POLLOUT events instead of POLLIN|POLLOUT
To fix this, we need to move the call to sk->sk_state_change()
after the (optional) call to tcp_rcv_fastopen_synack()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/intel')
0 files changed, 0 insertions, 0 deletions