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(parent: a19a7ec) | patch
pkt_sched: do not use rcu in tc_dump_qdisc()
authorEric Dumazet <edumazet@google.com>
Tue, 11 Mar 2014 00:11:42 +0000 (17:11 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 12 Mar 2014 03:54:23 +0000 (23:54 -0400)
commit15dc36ebbbea7da35fff2c51b620c8333fc87528
tree8da1869274a4800b33ec0666668b9a474f34f3c6tree | snapshot
parenta19a7ec8fc8eb32113efeaff2a1ceca273726e9bcommit | diff
pkt_sched: do not use rcu in tc_dump_qdisc()

Like all rtnetlink dump operations, we hold RTNL in tc_dump_qdisc(),
so we do not need to use rcu protection to protect list of netdevices.

This will allow preemption to occur, thus reducing latencies.
Following patch adds explicit cond_resched() calls.

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