Re: [PATCH 4/5] ipvs: Lock socket before setting SK_CAN_REUSE

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On Tue, 2016-06-14 at 02:43 +0100, Quentin Armitage wrote:
> When other settings are changed in the socket it is locked, so
> lock the socket before setting SK_CAN_REUSE.
> 
> Signed-off-by: Quentin Armitage <quentin@xxxxxxxxxxxxxxx>
> ---
>  net/netfilter/ipvs/ip_vs_sync.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
> index 29d73d8..dfac9ef 100644
> --- a/net/netfilter/ipvs/ip_vs_sync.c
> +++ b/net/netfilter/ipvs/ip_vs_sync.c
> @@ -1540,7 +1540,9 @@ static struct socket *make_receive_sock(struct netns_ipvs *ipvs, int id, int ifi
>  	}
>  
>  	/* it is equivalent to the REUSEADDR option in user-space */
> +	lock_sock(sock->sk);
>  	sock->sk->sk_reuse = SK_CAN_REUSE;
> +	release_sock(sock->sk);
>  	result = sysctl_sync_sock_size(ipvs);
>  	if (result > 0)
>  		set_sock_size(sock->sk, 0, result);


Have you tested this patch ?



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