Changed decimals to integers in the arcstat script

Changed interval value type from decimal to integer,
because of deprecation warning in Python 3.8 and above.
Also changed kstat values type from decimal to integer,
because all the values are integers.

Fixed behavior of arcstat when run without args.

Reviewed-by: George Melikov <[email protected]>
Reviewed-by: Ryan Moeller <[email protected]>
Signed-off-by: Bartosz Zieba <[email protected]>
Closes #10132 
Closes #10142 

1 files changed, 4 insertions, 13 deletions

diff --git a/cmd/arcstat/arcstat b/cmd/arcstat/arcstat
index 143f47574..66d7e3a8d 100755
--- a/cmd/arcstat/arcstat
+++ b/cmd/arcstat/arcstat
@@ -51,7 +51,6 @@ import getopt
 import re
 import copy
 
-from decimal import Decimal
 from signal import signal, SIGINT, SIGWINCH, SIG_DFL
 
 
@@ -139,7 +138,7 @@ if sys.platform.startswith('freebsd'):
 
             name, value = s.name, s.value
             # Trims 'kstat.zfs.misc.arcstats' from the name
-            kstat[name[24:]] = Decimal(value)
+            kstat[name[24:]] = int(value)
 
 elif sys.platform.startswith('linux'):
     def kstat_update():
@@ -158,7 +157,7 @@ elif sys.platform.startswith('linux'):
                 continue
 
             name, unused, value = s.split()
-            kstat[name] = Decimal(value)
+            kstat[name] = int(value)
 
 
 def detailed_usage():
@@ -335,16 +334,8 @@ def init():
         i += 1
 
     argv = sys.argv[i:]
-    sint = Decimal(argv[0]) if argv else sint
-    count = int(argv[1]) if len(argv) > 1 else count
-
-    if len(argv) > 1:
-        sint = Decimal(argv[0])
-        count = int(argv[1])
-
-    elif len(argv) > 0:
-        sint = Decimal(argv[0])
-        count = 0
+    sint = int(argv[0]) if argv else sint
+    count = int(argv[1]) if len(argv) > 1 else (0 if len(argv) > 0 else 1)
 
     if hflag or (xflag and desired_cols):
         usage()