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Commit 6348ef2d authored by Jia He's avatar Jia He Committed by David S. Miller
Browse files

net:snmp: Introduce generic interfaces for snmp_get_cpu_field{, 64} 



This is to introduce the generic interfaces for snmp_get_cpu_field{,64}.
It exchanges the two for-loops for collecting the percpu statistics data.
This can aggregate the data by going through all the items of each cpu
sequentially.

Signed-off-by: default avatarJia He <hejianet@gmail.com>
Suggested-by: default avatarMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fa140354

include/net/ip.h

+23 −0
Original line number Diff line number Diff line
@@ -219,6 +219,29 @@ static inline u64 snmp_fold_field64(void __percpu *mib, int offt, size_t syncp_o 
}

#endif



#define snmp_get_cpu_field64_batch(buff64, stats_list, mib_statistic, offset) \

{ \

	int i, c; \

	for_each_possible_cpu(c) { \

		for (i = 0; stats_list[i].name; i++) \

			buff64[i] += snmp_get_cpu_field64( \

					mib_statistic, \

					c, stats_list[i].entry, \

					offset); \

	} \

}



#define snmp_get_cpu_field_batch(buff, stats_list, mib_statistic) \

{ \

	int i, c; \

	for_each_possible_cpu(c) { \

		for (i = 0; stats_list[i].name; i++) \

			buff[i] += snmp_get_cpu_field( \

						mib_statistic, \

						c, stats_list[i].entry); \

	} \

}



void inet_get_local_port_range(struct net *net, int *low, int *high);



#ifdef CONFIG_SYSCTL