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net_sched: sch_fq: avoid calling ktime_get_ns() if not needed
authorEric Dumazet <edumazet@google.com>
Tue, 20 Nov 2018 01:30:19 +0000 (17:30 -0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 20 Nov 2018 17:51:32 +0000 (09:51 -0800)
commit08d4e2ba1bde631438c48cbabaa741f02468406d
tree531594a49b69a9843804d30d7e1f2cd4adb53bf7tree | snapshot
parent9b17d17ac6ae42a7c0ff8d3d3b2e8ae573f97f82commit | diff
net_sched: sch_fq: avoid calling ktime_get_ns() if not needed

There are two cases were we can avoid calling ktime_get_ns() :

1) Queue is empty.
2) Internal queue is not empty.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/sch_fq.c diff | blob | history
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