From c0667adce9a0915a3cd5982dad37db9e54dae62c Mon Sep 17 00:00:00 2001
From: Tamas Gerczei <tamas@gerczei.eu>
Date: Wed, 30 Aug 2017 15:36:41 +0200
Subject: [PATCH] simplified snapuse() by removing recursion and related
 arithmetics

---
 zfs-backup.sh | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/zfs-backup.sh b/zfs-backup.sh
index 7ceabce..d79a07b 100644
--- a/zfs-backup.sh
+++ b/zfs-backup.sh
@@ -16,18 +16,7 @@ function check_dataset() {
 }
 
 function snapuse() {
-	# whee
-	local TOTAL=0
-	while read value
-		do
-			if [[ $value =~ ^[0-9] ]]
-				then
-					TOTAL=$(( $TOTAL + $value ))
-			fi
-		done \
-			 <<< "$(${R_RMOD} /usr/sbin/zfs get -Hpro value usedbysnapshots ${1} 2>/dev/null)"
-
-	echo $TOTAL
+	 ${R_RMOD} /usr/sbin/zfs get -Hpo value usedbysnapshots ${1}
 }
 
 function human() {