| commit | ba3bb0e76ccd464bb66665a1941fabe55dadb3ba | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Tue Jun 30 13:51:28 2020 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Wed Jul 01 17:46:04 2020 -0700 |
| tree | 331f8bc7f2b3e7d58d4df3c4e8dcc4d389f32fd6 | |
| parent | 0da7536fb47f51df89ccfcb1fa09f249d9accec5 [diff] |
tcp: fix SO_RCVLOWAT possible hangs under high mem pressure
Whenever tcp_try_rmem_schedule() returns an error, we are under
trouble and should make sure to wakeup readers so that they
can drain socket queues and eventually make room.
Fixes: 03f45c883c6f ("tcp: avoid extra wakeups for SO_RCVLOWAT users")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>