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top: make it work again on 2.4 kernels (closes bug 125)

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This commit is contained in:
Denis Vlasenko 2009-03-03 11:55:31 +00:00
parent 7e0c243ad5
commit 7886275c98
1 changed files with 6 additions and 7 deletions
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13
procps/top.c
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@ -50,7 +50,9 @@ typedef struct top_status_t {
} top_status_t;
typedef struct jiffy_counts_t {
unsigned long long usr,nic,sys,idle,iowait,irq,softirq,steal;
/* Linux 2.4.x has only first four */
unsigned long long usr, nic, sys, idle;
unsigned long long iowait, irq, softirq, steal;
unsigned long long total;
unsigned long long busy;
} jiffy_counts_t;
@ -179,15 +181,12 @@ static int mult_lvl_cmp(void* a, void* b)
return 0;
}
/* NOINLINE so that complier doesn't unfold the call
* causing multiple copies of the arithmatic instrns
*/
static NOINLINE int read_cpu_jiffy(FILE *fp, jiffy_counts_t *p_jif)
{
#if !ENABLE_FEATURE_TOP_SMP_CPU
static const char fmt[] = "cpu %lld %lld %lld %lld %lld %lld %lld %lld";
static const char fmt[] = "cpu %llu %llu %llu %llu %llu %llu %llu %llu";
#else
static const char fmt[] = "cp%*s %lld %lld %lld %lld %lld %lld %lld %lld";
static const char fmt[] = "cp%*s %llu %llu %llu %llu %llu %llu %llu %llu";
#endif
int ret;
@ -197,7 +196,7 @@ static NOINLINE int read_cpu_jiffy(FILE *fp, jiffy_counts_t *p_jif)
&p_jif->usr, &p_jif->nic, &p_jif->sys, &p_jif->idle,
&p_jif->iowait, &p_jif->irq, &p_jif->softirq,
&p_jif->steal);
if (ret > 4) {
if (ret >= 4) {
p_jif->total = p_jif->usr + p_jif->nic + p_jif->sys + p_jif->idle
+ p_jif->iowait + p_jif->irq + p_jif->softirq + p_jif->steal;
/* procps 2.x does not count iowait as busy time */