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(parent: c7757fd) | patch
tcp: avoid a possible divide by zero
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 7 Dec 2010 12:03:55 +0000 (12:03 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 8 Dec 2010 20:34:08 +0000 (12:34 -0800)
commitad9f4f50fe9288bbe65b7dfd76d8820afac6a24c
treef3f3100da8d042607bbbab31c1f8a060ba2b5f15tree | snapshot (tar.gz zip)
parentc7757fdb41dfcf6add9f8a4576eb85aa5e77a4ebcommit | diff
tcp: avoid a possible divide by zero

sysctl_tcp_tso_win_divisor might be set to zero while one cpu runs in
tcp_tso_should_defer(). Make sure we dont allow a divide by zero by
reading sysctl_tcp_tso_win_divisor exactly once.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_output.c diff | blob | blame | history