eta: fix potential divide by zero
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/eta.c b/eta.c
index 42066e0..7500082 100644
--- a/eta.c
+++ b/eta.c
@@ -174,14 +174,26 @@
double perc, perc_t;
bytes_done = ddir_rw_sum(td->io_bytes);
- perc = (double) bytes_done / (double) bytes_total;
- if (perc > 1.0)
- perc = 1.0;
+
+ if (bytes_total) {
+ perc = (double) bytes_done / (double) bytes_total;
+ if (perc > 1.0)
+ perc = 1.0;
+ } else
+ perc = 0.0;
if (td->o.time_based) {
- perc_t = (double) elapsed / (double) timeout;
- if (perc_t < perc)
- perc = perc_t;
+ if (timeout) {
+ perc_t = (double) elapsed / (double) timeout;
+ if (perc_t < perc)
+ perc = perc_t;
+ } else {
+ /*
+ * Will never hit, we can't have time_based
+ * without a timeout set.
+ */
+ perc = 0.0;
+ }
}
eta_sec = (unsigned long) (elapsed * (1.0 / perc)) - elapsed;