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0ed8ddf404
linux/net/core
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Eric Dumazet 0ed8ddf404 neigh: Protect neigh->ha[] with a seqlock 
Add a seqlock in struct neighbour to protect neigh->ha[], and avoid
dirtying neighbour in stress situation (many different flows / dsts)

Dirtying takes place because of read_lock(&n->lock) and n->used writes.

Switching to a seqlock, and writing n->used only on jiffies changes
permits less dirtying.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-11 12:54:04 -07:00
..
datagram.c net: poll() optimizations 2010-09-06 18:48:45 -07:00
dev_addr_lists.c net: include linux/proc_fs.h in dev_addr_lists.c 2010-04-07 16:46:36 -07:00
dev.c net: Fix rxq ref counting 2010-10-08 14:34:32 -07:00
drop_monitor.c drop_monitor: use genl_register_family_with_ops() 2010-07-26 20:59:42 -07:00
dst.c neigh: speedup neigh_hh_init() 2010-10-11 09:16:57 -07:00
ethtool.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-10-11 12:30:34 -07:00
fib_rules.c fib: RCU conversion of fib_lookup() 2010-10-05 20:39:38 -07:00
filter.c net: sk_{detach|attach}_filter() rcu fixes 2010-09-27 21:30:44 -07:00
flow.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
gen_estimator.c pkt_sched: remov unnecessary bh_disable 2010-09-10 12:47:59 -07:00
gen_stats.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
iovec.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-10-04 11:56:38 -07:00
kmap_skb.h
link_watch.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
Makefile net: support time stamping in phy devices. 2010-07-18 19:15:26 -07:00
neighbour.c neigh: Protect neigh->ha[] with a seqlock 2010-10-11 12:54:04 -07:00
net_namespace.c net: disallow to use net_assign_generic externally 2010-04-27 15:49:02 -07:00
net-sysfs.c net: Fix rxq ref counting 2010-10-08 14:34:32 -07:00
net-sysfs.h net: Allow changing number of RX queues after device allocation 2010-09-27 22:09:49 -07:00
net-traces.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
netevent.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
netpoll.c Revert "net: remove zap_completion_queue" 2010-08-03 00:24:04 -07:00
pktgen.c net: core: use kernel's converter from hex to bin 2010-09-21 18:04:45 -07:00
request_sock.c net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
rtnetlink.c net: copy_rtnl_link_stats64() simplification 2010-08-23 20:43:16 -07:00
scm.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
skbuff.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-09 22:27:33 -07:00
sock.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
stream.c net: Fix the condition passed to sk_wait_event() 2010-10-03 20:41:32 -07:00
sysctl_net_core.c net: Consistent skb timestamping 2010-05-15 23:57:10 -07:00
timestamping.c net: support time stamping in phy devices. 2010-07-18 19:15:26 -07:00
user_dma.c net/core/user_dma.c: Use frag list abstraction interfaces. 2009-06-09 00:19:10 -07:00
utils.c net: return operator cleanup 2010-09-23 14:33:39 -07:00