tree 66398fef2588f20e0fad2083b18465089995bb0a
parent 2d946e5bcdabc1deef72d01bc92a2801c71d6d8d
author Willem de Bruijn <willemb@google.com> 1536534732 -0400
committer David S. Miller <davem@davemloft.net> 1536734060 -0700

tcp: rate limit synflood warnings further

Convert pr_info to net_info_ratelimited to limit the total number of
synflood warnings.

Commit 946cedccbd73 ("tcp: Change possible SYN flooding messages")
rate limits synflood warnings to one per listener.

Workloads that open many listener sockets can still see a high rate of
log messages. Syzkaller is one frequent example.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>