fib_rules: reorder struct fib_rules fields
Move refcnt, pref, suppress_ifgroup, suppress_prefixlen out of first
cache line, as they are not used in fast path.
Make sure ctarget & fr_net are in first cache line.
(Assuming 64 bit arches and 64 bytes cache lines)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 9d0fcbaa..4b2b557 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -10,23 +10,25 @@
struct fib_rule {
struct list_head list;
- atomic_t refcnt;
int iifindex;
int oifindex;
u32 mark;
u32 mark_mask;
- u32 pref;
u32 flags;
u32 table;
- int suppress_ifgroup;
- int suppress_prefixlen;
u8 action;
+ /* 3 bytes hole, try to use */
u32 target;
struct fib_rule __rcu *ctarget;
+ struct net *fr_net;
+
+ atomic_t refcnt;
+ u32 pref;
+ int suppress_ifgroup;
+ int suppress_prefixlen;
char iifname[IFNAMSIZ];
char oifname[IFNAMSIZ];
struct rcu_head rcu;
- struct net * fr_net;
};
struct fib_lookup_arg {
