From: Omar Sandoval <osandov@fb.com>
Date: Wed, 28 Feb 2018 18:17:34 +0000 (-0800)
Subject: block/014: test all I/O schedulers
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c8547a38f9aef58f88384e630e4a0e99d66c09d2;p=users%2Fsagi%2Fblktests.git

block/014: test all I/O schedulers

Signed-off-by: Omar Sandoval <osandov@fb.com>
---

diff --git a/tests/block/014 b/tests/block/014
index 917017c..da5508d 100755
--- a/tests/block/014
+++ b/tests/block/014
@@ -19,8 +19,6 @@
 
 DESCRIPTION="run null-blk with timeout injection configured"
 
-QUICK=1
-
 requires() {
 	_have_module null-blk && _have_module_param null_blk timeout
 }
@@ -32,14 +30,23 @@ test() {
 
 	# The format is "<interval>,<probability>,<space>,<times>". Here, we
 	# fail 50% of I/Os.
-	modprobe null_blk timeout='1,50,0,-1'
-
-	# Do a bunch of I/Os which will timeout and then complete. The only
-	# thing we're really testing here is that this doesn't crash or hang.
-	for ((i = 0; i < 100; i++)); do
-		dd if=/dev/nullb0 of=/dev/null bs=4K count=4 iflag=direct status=none &
+	modprobe null_blk queue_mode=2 timeout='1,50,0,-1'
+
+	local scheds
+	scheds=($(sed 's/[][]//g' /sys/block/nullb0/queue/scheduler))
+
+	for sched in "${scheds[@]}"; do
+		echo "Testing $sched" >> "$FULL"
+		echo "$sched" > /sys/block/nullb0/queue/scheduler
+		# Do a bunch of I/Os which will timeout and then complete. The
+		# only thing we're really testing here is that this doesn't
+		# crash or hang.
+		for ((i = 0; i < 100; i++)); do
+			dd if=/dev/nullb0 of=/dev/null bs=4K count=4 \
+				iflag=direct status=none &
+		done
+		wait
 	done
-	wait
 
 	modprobe -r null_blk