Merge pull request #82 from attie/improve_list

Improve performance of listings

Author: Jonathan Carter

src/zfs-auto-snapshot.sh

@@ -367,20 +367,20 @@ fi
 ZPOOL_STATUS=$(env LC_ALL=C zpool status 2>&1 ) \
   || { print_log error "zpool status $?: $ZPOOL_STATUS"; exit 135; }
 
-ZFS_LIST=$(env LC_ALL=C zfs list -H -t filesystem,volume -s name \
-  -o name,com.sun:auto-snapshot,com.sun:auto-snapshot:"$opt_label") \
+ZFS_LIST=$(env LC_ALL=C zfs list -r -H -t filesystem,volume -s name \
+  -o name,com.sun:auto-snapshot,com.sun:auto-snapshot:"$opt_label" "${@}") \
   || { print_log error "zfs list $?: $ZFS_LIST"; exit 136; }
 
 if [ -n "$opt_fast_zfs_list" ]
 then
-	SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -H -t snapshot -o name -s name | \
+	SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -r -H -t snapshot -o name -s name "${@}" | \
 		grep $opt_prefix | \
 		awk '{ print substr( $0, length($0) - 14, length($0) ) " " $0}' | \
 		sort -r -k1,1 -k2,2 | \
 		awk '{ print substr( $0, 17, length($0) )}') \
 	  || { print_log error "zfs list $?: $SNAPSHOTS_OLD"; exit 137; }
 else
-	SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -H -t snapshot -S creation -o name) \
+	SNAPSHOTS_OLD=$(env LC_ALL=C zfs list -r -H -t snapshot -S creation -o name "${@}" ) \
 	  || { print_log error "zfs list $?: $SNAPSHOTS_OLD"; exit 137; }
 fi