Hi all, I took the below lines from the file linux/net/ipv4/proc.c inside the function int netstat_get_info(char *buffer, char **start, off_t offset, int length); those lines are for (i=0; i<offsetof(struct linux_mib, __pad)/sizeof(unsigned long); i++) len += sprintf(buffer+len, " %lu", fold_field((unsigned long*)net_statistics, sizeof(struct linux_mib), i)); len += sprintf (buffer + len, "\n"); can any of u please explain me what exactly happens in those three lines. I somehow understood that this function is used to collect values to populate the /proc/net/netstat file. what i exactly want to know is, whether the values are cpu specific or not like SyncookiesSent for cpu0 SyncookiesSent for cpu1 etc because i found that net_statistics is an array of struc linux_mib declared as struct linux_mib net_statistics[NR_CPUS*2]; in linux/net/ipv4/af_inet.c where as NR_CPUS is a macro defined as 1 for non smp machines and 32 for smp machines. why net_statistics is declared as an array of NR_CPUS*2 What exactly the file structure of /proc/net/netstat is is it TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFail........ TcpExt: 0 0 0 0 0 0 0 0 0 11 0 0 0 0 0 24 0 0 0 0 4 0 235........ <or> TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFail..... TcpExt: 0 0 0 0 0 0 0 0 0 11 0 0 0 0 0 24 0 0 0 0 4 0 235......<for cpu0> TcpExt: 0 0 0 0 0 0 0 0 0 11 0 0 0 0 0 24 0 0 0 0 4 0 235......<for cpu1> thanks and regards, mohan. - Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
