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| author | Daniel Borkmann <dborkman@redhat.com> | 2014-08-23 20:58:54 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-23 12:21:21 -0700 |
| commit | 8fc54f68919298ff9689d980efb495707ef43f30 (patch) | |
| tree | c8a0c89621a9e670be02764a357bb6e73ed7ab6c /net/sched/sch_fq_codel.c | |
| parent | 690e36e726d00d2528bc569809048adf61550d80 (diff) | |
| download | blackbird-op-linux-8fc54f68919298ff9689d980efb495707ef43f30.tar.gz blackbird-op-linux-8fc54f68919298ff9689d980efb495707ef43f30.zip | |
net: use reciprocal_scale() helper
Replace open codings of (((u64) <x> * <y>) >> 32) with reciprocal_scale().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_fq_codel.c')
| -rw-r--r-- | net/sched/sch_fq_codel.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c index 063b726bf1f8..cc56c8bb9bed 100644 --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c @@ -77,7 +77,8 @@ static unsigned int fq_codel_hash(const struct fq_codel_sched_data *q, hash = jhash_3words((__force u32)keys.dst, (__force u32)keys.src ^ keys.ip_proto, (__force u32)keys.ports, q->perturbation); - return ((u64)hash * q->flows_cnt) >> 32; + + return reciprocal_scale(hash, q->flows_cnt); } static unsigned int fq_codel_classify(struct sk_buff *skb, struct Qdisc *sch, |
