tree 3c84b591c773611a6c4c00589f69a6639e83b8e0
parent ad9f4f50fe9288bbe65b7dfd76d8820afac6a24c
author Eric Dumazet <eric.dumazet@gmail.com> 1291724447 +0000
committer David S. Miller <davem@davemloft.net> 1291840449 -0800

tcp: protect sysctl_tcp_cookie_size reads

Make sure sysctl_tcp_cookie_size is read once in
tcp_cookie_size_check(), or we might return an illegal value to caller
if sysctl_tcp_cookie_size is changed by another cpu.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: William Allen Simpson <william.allen.simpson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>