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

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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 <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Pavel Emelyanov 2008-03-31 19:42:16 -07:00 • committed by David S. Miller

parent c29a0bc4df

commit 70ee115942

2 changed files with 51 additions and 0 deletions

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include/net/netns/core.h

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