ZTS: fix wait_scrubbed()

Currently, wait_scrubbed() is the only function of its kind that
accepts a timeout, which is 10s by default. This timeout is pretty
short for a scrub and causes test failures if we run too long. This
patch removes the timeout, instead leaning on the global test suite
timeout to ensure the tests keep moving.

Reviewed-by: Richard Elling <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Tom Caputi <[email protected]>
Closes #8210 

1 files changed, 4 insertions, 9 deletions

diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 2effa4207..482ab5ef5 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -1029,7 +1029,7 @@ function get_endslice #<disk> <slice>
 
 		((endcyl = (endcyl + 1) / ratio))
 	fi
-	
+
 	echo $endcyl
 }
 
@@ -3209,15 +3209,10 @@ function wait_replacing #pool
 function wait_scrubbed
 {
 	typeset pool=${1:-$TESTPOOL}
-	typeset iter=${2:-10}
-	typeset -i i=0
-	for i in {1..$iter} ; do
-		if is_pool_scrubbed $pool ; then
-			return 0
-		fi
-		sleep 1
+	while true ; do
+		is_pool_scrubbed $pool && break
+		log_must sleep 1
 	done
-	return 1
 }
 
 # Backup the zed.rc in our test directory so that we can edit it for our test.