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Fix uninitialized variables and bad function calls #3

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Fix uninitialized variables and bad function calls #3

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8 changes: 5 additions & 3 deletions src/devheart.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@

// use kernel module name in front of kernel log messages
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define CPUTIME_PER_USEC 4096ULL

#include <linux/module.h>
#include <linux/kernel.h>
Expand Down Expand Up @@ -72,7 +73,7 @@ static u64 get_idle_time(int cpu)
idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
}
else {
idle = usecs_to_cputime64(idle_time);
idle = idle_time * CPUTIME_PER_USEC;
}

return idle;
Expand All @@ -91,15 +92,16 @@ static u64 get_iowait_time(int cpu)
iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
}
else {
iowait = usecs_to_cputime64(iowait_time);
iowait = iowait_time * CPUTIME_PER_USEC;
}

return iowait;
}

void cpu_stat(u64 *idle_time, u64 *total_time) {
int i;
u64 user, nice, system, idle, iowait, irq, softirq, steal = 0;
u64 user = 0, nice = 0, system = 0, idle = 0;
u64 iowait = 0, irq = 0, softirq = 0, steal = 0;

for_each_possible_cpu(i) {
user += kcpustat_cpu(i).cpustat[CPUTIME_USER];
Expand Down