Re: [PATCH 09/16] netvm: Allow skb allocation to use PFMEMALLOCreserves

[Sebastian Andrzej Siewior]

On Fri, Jun 22, 2012 at 03:30:36PM +0100, Mel Gorman wrote:
> diff --git a/net/core/sock.c b/net/core/sock.c
> index 5c9ca2b..159dccc 100644
> --- a/net/core/sock.c
> +++ b/net/core/sock.c
> @@ -271,6 +271,9 @@ __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
>  int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512);
>  EXPORT_SYMBOL(sysctl_optmem_max);
>  
> +struct static_key memalloc_socks = STATIC_KEY_INIT_FALSE;
> +EXPORT_SYMBOL_GPL(memalloc_socks);
> +

This is used via sk_memalloc_socks() by SLAB.