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Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull core kernel fixes from Ingo Molnar:
 "Two small fixes"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation: Reflect the new location of the NMI watchdog info
  nohz: Fix idle ticks in cpu summary line of /proc/stat
This commit is contained in:
Linus Torvalds 2012-10-24 04:07:02 +03:00
commit 684baeb1d7
2 changed files with 12 additions and 6 deletions
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14
fs/proc/stat.c
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@ -45,10 +45,13 @@ static cputime64_t get_iowait_time(int cpu)
static u64 get_idle_time(int cpu)
{
u64 idle, idle_time = get_cpu_idle_time_us(cpu, NULL);
u64 idle, idle_time = -1ULL;
if (cpu_online(cpu))
idle_time = get_cpu_idle_time_us(cpu, NULL);
if (idle_time == -1ULL)
/* !NO_HZ so we can rely on cpustat.idle */
/* !NO_HZ or cpu offline so we can rely on cpustat.idle */
idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
else
idle = usecs_to_cputime64(idle_time);
@ -58,10 +61,13 @@ static u64 get_idle_time(int cpu)
static u64 get_iowait_time(int cpu)
{
u64 iowait, iowait_time = get_cpu_iowait_time_us(cpu, NULL);
u64 iowait, iowait_time = -1ULL;
if (cpu_online(cpu))
iowait_time = get_cpu_iowait_time_us(cpu, NULL);
if (iowait_time == -1ULL)
/* !NO_HZ so we can rely on cpustat.iowait */
/* !NO_HZ or cpu offline so we can rely on cpustat.iowait */
iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
else
iowait = usecs_to_cputime64(iowait_time);