diff options
author | Eric Dumazet <edumazet@google.com> | 2014-10-04 10:11:31 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-10-06 00:55:10 -0400 |
commit | f2600cf02b5b59aaee082c3485b7f01fc7f7b70c (patch) | |
tree | f38d692c3f706ead3d0cfd77b216fbd629a22964 /drivers/crypto/talitos.h | |
parent | 681d2421e1135b95f5cd9d16fe10eac7f570a9f2 (diff) | |
download | op-kernel-dev-f2600cf02b5b59aaee082c3485b7f01fc7f7b70c.zip op-kernel-dev-f2600cf02b5b59aaee082c3485b7f01fc7f7b70c.tar.gz |
net: sched: avoid costly atomic operation in fq_dequeue()
Standard qdisc API to setup a timer implies an atomic operation on every
packet dequeue : qdisc_unthrottled()
It turns out this is not really needed for FQ, as FQ has no concept of
global qdisc throttling, being a qdisc handling many different flows,
some of them can be throttled, while others are not.
Fix is straightforward : add a 'bool throttle' to
qdisc_watchdog_schedule_ns(), and remove calls to qdisc_unthrottled()
in sch_fq.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/crypto/talitos.h')
0 files changed, 0 insertions, 0 deletions