path: root/include/net/fib_rules.h
diff options
authorEric Dumazet <edumazet@google.com>2013-08-03 11:50:35 -0700
committerDavid S. Miller <davem@davemloft.net>2013-08-03 11:53:54 -0700
commitfba3679d34511c42bf452e89dda457a1219eb43a (patch)
treee15630906314e3243c2053887bd1f32af8a40f2e /include/net/fib_rules.h
parent73f5698e77219bfc3ea1903759fe8e20ab5b285e (diff)
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>
Diffstat (limited to 'include/net/fib_rules.h')
1 files changed, 7 insertions, 5 deletions
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 9d0fcbaa9cb..4b2b557fb0e 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 {