Commit 14d898f3 authored by Toke Høiland-Jørgensen's avatar Toke Høiland-Jørgensen Committed by Alexei Starovoitov
Browse files

dev: Move received_rps counter next to RPS members in softnet data 



Move the received_rps counter value next to the other RPS-related members
in softnet_data. This closes two four-byte holes in the structure, making
room for another pointer in the first two cache lines without bumping the
xmit struct to its own line.

Acked-by: default avatarSong Liu <song@kernel.org>
Reviewed-by: default avatarStanislav Fomichev <sdf@google.com>
Signed-off-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20221108140601.149971-2-toke@redhat.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 26a9b433

include/linux/netdevice.h

+1 −1
Original line number Diff line number Diff line
@@ -3128,7 +3128,6 @@ struct softnet_data { 
	/* stats */

	unsigned int		processed;

	unsigned int		time_squeeze;

	unsigned int		received_rps;

#ifdef CONFIG_RPS

	struct softnet_data	*rps_ipi_list;

#endif
@@ -3161,6 +3160,7 @@ struct softnet_data { 
	unsigned int		cpu;

	unsigned int		input_queue_tail;

#endif

	unsigned int		received_rps;

	unsigned int		dropped;

	struct sk_buff_head	input_pkt_queue;

	struct napi_struct	backlog;