net: sched: fix qdisc->running lockdep annotations

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1) qdisc_run_begin() is really using the equivalent of a trylock.
  Instead of using write_seqcount_begin(), use a combination of
  raw_write_seqcount_begin() and correct lockdep annotation.

2) sch_direct_xmit() should use regular spin_lock(root_lock)

Fixes: f9eb8aea2a ("net_sched: transform qdisc running bit into a seqcount")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2016-06-09 07:45:11 -07:00 • committed by David S. Miller

parent 5362855aba

commit 52fbb29079

2 changed files with 7 additions and 3 deletions

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include/net/sch_generic.h

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