[PATCH blktests -v2] Fix build failure for discontiguous-io on 32-bit platforms

["Theodore Ts'o" <tytso@xxxxxxx>]

Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
---
 src/discontiguous-io.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/discontiguous-io.cpp b/src/discontiguous-io.cpp
index 5e0ee0f..f51a305 100644
--- a/src/discontiguous-io.cpp
+++ b/src/discontiguous-io.cpp
@@ -251,7 +251,7 @@ int main(int argc, char **argv)
 	const char *dev;
 	int c;
 	std::vector<uint8_t> buf;
-	size_t len = 512;
+	unsigned long len = 512;
 
 	while ((c = getopt(argc, argv, "hl:o:sw")) != EOF) {
 		switch (c) {
-- 
2.18.0.rc0