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[PATCH] Fix idle time field in /proc/uptime
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Git commit 79741dd changes idle cputime accounting, but unfortunately
the /proc/uptime file hasn't caught up.  Here the idle time calculation
from /proc/stat is copied over.

Signed-off-by: Michael Abbott <michael.abbott@diamond.ac.uk>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Michael Abbott authored and Martin Schwidefsky committed Sep 24, 2009
1 parent 94a8d5c commit 96830a5
Showing 1 changed file with 6 additions and 1 deletion.
7 changes: 6 additions & 1 deletion fs/proc/uptime.c
Original file line number Diff line number Diff line change
Expand Up @@ -4,13 +4,18 @@
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/time.h>
#include <linux/kernel_stat.h>
#include <asm/cputime.h>

static int uptime_proc_show(struct seq_file *m, void *v)
{
struct timespec uptime;
struct timespec idle;
cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
int i;
cputime_t idletime = cputime_zero;

for_each_possible_cpu(i)
idletime = cputime64_add(idletime, kstat_cpu(i).cpustat.idle);

do_posix_clock_monotonic_gettime(&uptime);
monotonic_to_bootbased(&uptime);
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