Merge branch 'sched-refactor-NOLOCK-qdiscs'

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Paolo Abeni says:

====================
sched: refactor NOLOCK qdiscs

With the introduction of NOLOCK qdiscs, pfifo_fast performances in the
uncontended scenario degraded measurably, especially after the commit
eb82a99447 ("net: sched, fix OOO packets with pfifo_fast").

This series restore the pfifo_fast performances in such scenario back the
previous level, mainly reducing the number of atomic operations required to
perform the qdisc_run() call. Even performances in the contended scenario
increase measurably.

Note: This series is on top of:

sched: manipulate __QDISC_STATE_RUNNING in qdisc_run_* helpers
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

David S. Miller 2018-05-17 12:46:55 -04:00

parent b9f672af14 021a17ed79

commit 4b9c776803

3 changed files with 23 additions and 7 deletions

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5

include/linux/skb_array.h

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10

include/net/sch_generic.h

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15

net/sched/sch_generic.c

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