[PATCH 2/2] 251: Do not allow step to be zero

[Lukas Czerner]

Currently 'step' variable which is used as length of the range to
discard can be zero. However it would result in error returned by the
fstrim.

Fix this by forcing 'step' to be at least 4KB.

Signed-off-by: Lukas Czerner <lczerner at redhat.com>
---
 251 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/251 b/251
index f46b6e2..373afd0 100755
--- a/251
+++ b/251
@@ -98,7 +98,7 @@ fstrim_loop()
 	mmlen=$(_guess_max_minlen)
 
 	while true ; do
-		step=$((RANDOM*$RANDOM))
+		step=$((RANDOM*$RANDOM+4))
 		minlen=$(((RANDOM*($RANDOM%2+1))%$mmlen))
 		start=$RANDOM
 		if [ $((RANDOM%10)) -gt 7 ]; then
-- 
1.7.7.6