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authorJarek Poplawski <jarkao2@gmail.com>2008-08-22 03:24:05 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-22 03:31:39 -0700
commitf6e0b239a2657ea8cb67f0d83d0bfdbfd19a481b (patch)
tree9d6e3c97a81869fde3958cdbcf431ee3739f9b2c /kernel/time.c
parent2540e0511ea17e25831be543cdf9381e6209950d (diff)
pkt_sched: Fix qdisc list locking
Since some qdiscs call qdisc_tree_decrease_qlen() (so qdisc_lookup()) without rtnl_lock(), adding and deleting from a qdisc list needs additional locking. This patch adds global spinlock qdisc_list_lock and wrapper functions for modifying the list. It is considered as a temporary solution until hfsc_dequeue(), netem_dequeue() and tbf_dequeue() (or qdisc_tree_decrease_qlen()) are redone. With feedback from Herbert Xu and David S. Miller. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/time.c')
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