Commit 5a059869 authored by Jason A. Donenfeld's avatar Jason A. Donenfeld Committed by Jakub Kicinski
Browse files

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: default avatarJason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent d5a49aa6

drivers/net/wireguard/peer.h

+2 −2
Original line number Diff line number Diff line
@@ -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,