From: Jason A. Donenfeld Date: Mon, 22 Feb 2021 16:25:46 +0000 (+0100) Subject: wireguard: peer: put frequently used members above cache lines X-Git-Tag: v5.15~1635^2~12^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5a0598695634a6bb4126818902dd9140cd9df8b6;p=platform%2Fkernel%2Flinux-starfive.git wireguard: peer: put frequently used members above cache lines The is_dead boolean is checked for every single packet, while the internal_id member is used basically only for pr_debug messages. So it makes sense to hoist up is_dead into some space formerly unused by a struct hole, while demoting internal_api to below the lowest struct cache line. Signed-off-by: Jason A. Donenfeld Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/wireguard/peer.h b/drivers/net/wireguard/peer.h index 23af409..aaff8de 100644 --- a/drivers/net/wireguard/peer.h +++ b/drivers/net/wireguard/peer.h @@ -39,6 +39,7 @@ struct wg_peer { struct crypt_queue tx_queue, rx_queue; struct sk_buff_head staged_packet_queue; int serial_work_cpu; + bool is_dead; struct noise_keypairs keypairs; struct endpoint endpoint; struct dst_cache endpoint_cache; @@ -61,9 +62,8 @@ struct wg_peer { struct rcu_head rcu; struct list_head peer_list; struct list_head allowedips_list; - u64 internal_id; struct napi_struct napi; - bool is_dead; + u64 internal_id; }; struct wg_peer *wg_peer_create(struct wg_device *wg,