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ipv4: Move cached routes to fib_nh_common

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While the cached routes, nh_pcpu_rth_output and nh_rth_input, are IPv4
specific, a later patch wants to make them accessible for IPv6 nexthops
with IPv4 routes using a fib6_nh. Move the cached routes from fib_nh to
fib_nh_common and update references.

Initialization of the cached entries is moved to fib_nh_common_init,
and free is moved to fib_nh_common_release.

Change in location only, from fib_nh up to fib_nh_common; no functional
change intended.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2019-04-30 07:45:48 -07:00
committed by David S. Miller
parent a734d1f4c2
commit 0f457a3662
3 changed files with 32 additions and 28 deletions
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6
include/net/ip_fib.h
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@@ -96,6 +96,10 @@ struct fib_nh_common {
int nhc_weight;
atomic_t nhc_upper_bound;
/* v4 specific, but allows fib6_nh with v4 routes */
struct rtable __rcu * __percpu *nhc_pcpu_rth_output;
struct rtable __rcu *nhc_rth_input;
};
struct fib_nh {
@@ -107,8 +111,6 @@ struct fib_nh {
#endif
__be32 nh_saddr;
int nh_saddr_genid;
struct rtable __rcu * __percpu *nh_pcpu_rth_output;
struct rtable __rcu *nh_rth_input;
struct fnhe_hash_bucket __rcu *nh_exceptions;
#define fib_nh_family nh_common.nhc_family
#define fib_nh_dev nh_common.nhc_dev