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authorEric Dumazet <edumazet@google.com>2016-06-06 09:37:15 -0700
committerDavid S. Miller <davem@davemloft.net>2016-06-07 16:37:13 -0700
commitf9eb8aea2a1e12fc2f584d1627deeb957435a801 (patch)
treebc3cf06664da45bc0e6ce9b5165dba534ed11751 /net/sched/sch_hfsc.c
parentMerge branch 'be2net-noncrit-fixes' (diff)
downloadlinux-dev-f9eb8aea2a1e12fc2f584d1627deeb957435a801.tar.xz
linux-dev-f9eb8aea2a1e12fc2f584d1627deeb957435a801.zip
net_sched: transform qdisc running bit into a seqcount
Instead of using a single bit (__QDISC___STATE_RUNNING) in sch->__state, use a seqcount. This adds lockdep support, but more importantly it will allow us to sample qdisc/class statistics without having to grab qdisc root lock. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_hfsc.c')
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