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David S. Miller 195648bbc5 pkt_sched: Prevent livelock in TX queue running. ... If dev_deactivate() is trying to quiesce the queue, it is theoretically possible for another cpu to livelock trying to process that queue. This happens because dev_deactivate() grabs the queue spinlock as it checks the queue state, whereas net_tx_action() does a trylock and reschedules the qdisc if it hits the lock. This breaks the livelock by adding a check on __QDISC_STATE_DEACTIVATED to net_tx_action() when the trylock fails. Based upon feedback from Herbert Xu and Jarek Poplawski. Signed-off-by: David S. Miller <davem@davemloft.net>		17 years ago
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Makefile	…
datagram.c	net: skb_copy_datagram_from_iovec()	17 years ago
dev.c	pkt_sched: Prevent livelock in TX queue running.	17 years ago
dev_mcast.c	…
dst.c	…
ethtool.c	…
fib_rules.c	…
filter.c	…
flow.c	…
gen_estimator.c	Revert "pkt_sched: Protect gen estimators under est_lock."	17 years ago
gen_stats.c	…
iovec.c	…
kmap_skb.h	…
link_watch.c	…
neighbour.c	net: fix missing pneigh entries in the neighbor seq_file code	17 years ago
net-sysfs.c	…
net-sysfs.h	…
net_namespace.c	…
netevent.c	…
netpoll.c	netdev: Fix lockdep warnings in multiqueue configurations.	17 years ago
pktgen.c	pktgen: prevent pktgen from using bad tx queue	17 years ago
request_sock.c	…
rtnetlink.c	…
scm.c	…
skbuff.c	net: Preserve netfilter attributes in skb_gso_segment using __copy_skb_header	17 years ago
sock.c	…
stream.c	…
sysctl_net_core.c	…
user_dma.c	…
utils.c	…