From: Ruediger Meier <ruediger.meier@ga-group.nl>
Date: Tue, 15 Dec 2015 16:46:58 +0000 (+0100)
Subject: tests: always create sparse image files
X-Git-Tag: v2.28-rc1~213
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cb10736e4c5e51075d06ca9a0fc8ff49ac46c7d;p=thirdparty%2Futil-linux.git

tests: always create sparse image files

This saves about 400M disk I/O and space.

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
---

diff --git a/tests/functions.sh b/tests/functions.sh
index f6c4d33ee8..c7e0ded615 100644
--- a/tests/functions.sh
+++ b/tests/functions.sh
@@ -464,7 +464,8 @@ function ts_image_init {
 	local mib=${1:-"5"}	# size in MiBs
 	local img=${2:-"$TS_OUTDIR/${TS_TESTNAME}.img"}
 
-	dd if=/dev/zero of="$img" bs=1M count=$mib &> /dev/null
+	rm -f $img
+	truncate -s "${mib}M" "$img"
 	echo "$img"
 	return 0
 }