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sched: Call skb_get_hash_perturb in sch_fq_codel

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Call skb_get_hash_perturb instead of doing skb_flow_dissect and then
jhash by hand.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-05-01 11:30:13 -07:00 committed by David S. Miller
parent 50fb799289
commit 342db22182
1 changed files with 2 additions and 9 deletions
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11
net/sched/sch_fq_codel.c
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@ -23,7 +23,6 @@
#include <linux/vmalloc.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/flow_keys.h>
#include <net/codel.h>
/* Fair Queue CoDel.
@ -68,15 +67,9 @@ struct fq_codel_sched_data {
};
static unsigned int fq_codel_hash(const struct fq_codel_sched_data *q,
const struct sk_buff *skb)
struct sk_buff *skb)
{
struct flow_keys keys;
unsigned int hash;
skb_flow_dissect(skb, &keys);
hash = jhash_3words((__force u32)keys.dst,
(__force u32)keys.src ^ keys.ip_proto,
(__force u32)keys.ports, q->perturbation);
u32 hash = skb_get_hash_perturb(skb, q->perturbation);
return reciprocal_scale(hash, q->flows_cnt);
}