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-rw-r--r--btreplay/btreplay.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/btreplay/btreplay.c b/btreplay/btreplay.c
index 20494e0..6f0ba63 100644
--- a/btreplay/btreplay.c
+++ b/btreplay/btreplay.c
@@ -502,6 +502,7 @@ static inline void start_iter(void)
*/
static void get_ncpus(void)
{
+ long last_cpu;
cpu_set_t cpus;
if (sched_getaffinity(getpid(), sizeof(cpus), &cpus)) {
@@ -509,12 +510,11 @@ static void get_ncpus(void)
/*NOTREACHED*/
}
- /*
- * XXX This assumes (perhaps wrongly) that there are no /holes/
- * XXX in the mask.
- */
- for (ncpus = 0; ncpus < CPU_SETSIZE && CPU_ISSET(ncpus, &cpus); ncpus++)
- ;
+ ncpus = -1;
+ for (last_cpu = 0; last_cpu < CPU_SETSIZE && CPU_ISSET(last_cpu, &cpus); last_cpu++)
+ if (CPU_ISSET( last_cpu, &cpus) )
+ ncpus = last_cpu;
+ ncpus++;
if (ncpus == 0) {
fatal(NULL, ERR_SYSCALL, "Insufficient number of CPUs\n");
/*NOTREACHED*/