2011/6/9 Mel Gorman <mgorman@xxxxxxx>:
[...]
> +/*
> + * Limit which protocols can use the PFMEMALLOC reserves to those that are
> + * expected to be used for communication with swap.
> + */
> +static bool skb_pfmemalloc_protocol(struct sk_buff *skb)
> +{
> + switch (skb->protocol) {
> + case __constant_htons(ETH_P_ARP):
> + case __constant_htons(ETH_P_IP):
> + case __constant_htons(ETH_P_IPV6):
> + case __constant_htons(ETH_P_8021Q):
> + return true;
> + default:
> + return false;
> + }
> +}
This is not needed and wrong. Whatever list there will be, it's going
to always miss some obscure setup (or not that obscure, like
ATAoverEthernet).
Best Regards,
Michał Mirosław
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