diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-03-31 10:52:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-31 14:48:19 -0700 |
| commit | 490f33c4e70431d0a4d01666a6525fdd43299cde (patch) | |
| tree | 4d1b71273ecd5bfc98d03c7e1d56cfc150b0e562 | |
| parent | 1caf8d39c58f3f63193d02928c8dce3fa07cee52 (diff) | |
inet: shrink netns_ipv4 by another cache line
By shuffling around some fields to remove 8 bytes of hole,
we can save one cache line.
pahole result before/after the patch :
/* size: 768, cachelines: 12, members: 139 */
/* sum members: 673, holes: 11, sum holes: 39 */
/* padding: 56 */
/* paddings: 2, sum paddings: 7 */
/* forced alignments: 1 */
->
/* size: 704, cachelines: 11, members: 139 */
/* sum members: 673, holes: 10, sum holes: 31 */
/* paddings: 2, sum paddings: 7 */
/* forced alignments: 1 */
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/netns/ipv4.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 1085ed4e0788..538ed69919dc 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -57,17 +57,17 @@ struct netns_ipv4 { struct mutex ra_mutex; #ifdef CONFIG_IP_MULTIPLE_TABLES struct fib_rules_ops *rules_ops; - bool fib_has_custom_rules; - unsigned int fib_rules_require_fldissect; struct fib_table __rcu *fib_main; struct fib_table __rcu *fib_default; + unsigned int fib_rules_require_fldissect; + bool fib_has_custom_rules; #endif bool fib_has_custom_local_routes; + bool fib_offload_disabled; #ifdef CONFIG_IP_ROUTE_CLASSID int fib_num_tclassid_users; #endif struct hlist_head *fib_table_hash; - bool fib_offload_disabled; struct sock *fibnl; struct sock * __percpu *icmp_sk; |