[SOCK][NETNS]: Add the percpu prot_inuse counter in the struct net.

2008-04-01T02:42:16+00:00

Such an accounting would cost us two more dereferences to get the percpu variable from the struct net, so I make sock_prot_inuse_get and _add calls work differently depending on CONFIG_NET_NS - without it old optimized routines are used. The per-cpu counter for init_net is prepared in core_initcall, so that even af_inet, that starts as fs_initcall, will already have the init_net prepared. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[NETNS]: Introduce a netns_core structure.

2008-04-01T02:41:14+00:00

There's already some stuff on the struct net, that should better be folded into netns_core structure. I'm making the per-proto inuse counter be per-net also, which is also a candidate for this, so introduce this structure and populate it a bit. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

kernel/linux.git/include/net/netns/core.h, branch linux-2.6.28.y

[SOCK][NETNS]: Add the percpu prot_inuse counter in the struct net.

[NETNS]: Introduce a netns_core structure.