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| author | Eric Dumazet <edumazet@google.com> | 2016-05-03 04:49:25 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-04 16:44:36 (GMT) |
| commit | d4011239f46ac6e407af61e3f74d1e3874fc9394 (patch) | |
| tree | 5091043fd26ab8871104ba087894d9842a399d10 /net/tipc | |
| parent | cba653210056cf47cc1969f831f05ddfb99ee2bd (diff) | |
| download | linux-d4011239f46ac6e407af61e3f74d1e3874fc9394.tar.xz | |
tcp: guarantee forward progress in tcp_sendmsg()
Under high rx pressure, it is possible tcp_sendmsg() never has a
chance to allocate an skb and loop forever as sk_flush_backlog()
would always return true.
Fix this by calling sk_flush_backlog() only if one skb had been
allocated and filled before last backlog check.
Fixes: d41a69f1d390 ("tcp: make tcp_sendmsg() aware of socket backlog")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
0 files changed, 0 insertions, 0 deletions