Kernel/info.c
24127 /* 24128 * linux/kernel/info.c 24129 * 24130 * Copyright (C) 1992 Darren Senn 24131 */ 24132 24133 /* This implements the sysinfo() system call */ 24134 24135 #include <linux/mm.h> 24136 #include <linux/unistd.h> 24137 #include <linux/swap.h> 24138 #include <linux/smp_lock.h> 24139 24140 #include <asm/uaccess.h> 24141
24142 asmlinkage int sys_sysinfo(struct sysinfo *info) 24143 { 24144 struct sysinfo val; 24145 24146 memset((char *)&val, 0, sizeof(struct sysinfo)); 24147 24148 cli(); 24149 val.uptime = jiffies / HZ; 24150 24151 val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT); 24152 val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT); 24153 val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT); 24154 24155 val.procs = nr_tasks-1; 24156 sti(); 24157 24158 si_meminfo(&val); 24159 si_swapinfo(&val); 24160 24161 if (copy_to_user(info, &val, sizeof(struct sysinfo))) 24162 return -EFAULT; 24163 return 0; 24164 }
