Eric Dumazet 83723d6071 netfilter: x_tables: dont block BH while reading counters ... Using "iptables -L" with a lot of rules have a too big BH latency. Jesper mentioned ~6 ms and worried of frame drops. Switch to a per_cpu seqlock scheme, so that taking a snapshot of counters doesnt need to block BH (for this cpu, but also other cpus). This adds two increments on seqlock sequence per ipt_do_table() call, its a reasonable cost for allowing "iptables -L" not block BH processing. Reported-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Patrick McHardy <kaber@trash.net> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Jesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>		2011-01-10 20:11:38 +01:00
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acpi
asm-generic	Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2011-01-07 17:02:58 -08:00
crypto
drm
keys
linux	netfilter: x_tables: dont block BH while reading counters	2011-01-10 20:11:38 +01:00
math-emu
media
mtd
net	net/sock.h: make some fields private to fix kernel-doc warning(s)	2011-01-09 16:26:51 -08:00
pcmcia
rdma
rxrpc
scsi
sound
trace
video
xen
Kbuild