43 lines
892 B
C
43 lines
892 B
C
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/*
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* linux/kernel/info.c
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*
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* Copyright (C) 1992 Darren Senn
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*/
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/* This implements the sysinfo() system call */
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#include <asm/segment.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/unistd.h>
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#include <linux/types.h>
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#include <linux/mm.h>
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asmlinkage int sys_sysinfo(struct sysinfo *info)
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{
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int error;
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struct sysinfo val;
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struct task_struct **p;
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error = verify_area(VERIFY_WRITE, info, sizeof(struct sysinfo));
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if (error)
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return error;
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memset((char *)&val, 0, sizeof(struct sysinfo));
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val.uptime = jiffies / HZ;
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val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
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val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
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val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
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for (p = &LAST_TASK; p > &FIRST_TASK; p--)
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if (*p) val.procs++;
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si_meminfo(&val);
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si_swapinfo(&val);
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memcpy_tofs(info, &val, sizeof(struct sysinfo));
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return 0;
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}
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