svn commit: r321356 - head/usr.bin/top

[Mark Johnston]

Author: markj
Date: Fri Jul 21 23:53:48 2017
New Revision: 321356
URL: https://svnweb.freebsd.org/changeset/base/321356

Log:
  Fix top(1) output when zfs.ko is loaded but ZFS is not in use.
  
  Reviewed by:	allanjude
  MFC after:	3 days
  Differential Revision:	https://reviews.freebsd.org/D11693

Modified:
  head/usr.bin/top/machine.c

Modified: head/usr.bin/top/machine.c
==============================================================================
--- head/usr.bin/top/machine.c	Fri Jul 21 23:08:13 2017	(r321355)
+++ head/usr.bin/top/machine.c	Fri Jul 21 23:53:48 2017	(r321356)
@@ -328,14 +328,15 @@ machine_init(struct statics *statics, char do_unames)
 	    size != sizeof(smpmode))
 		smpmode = 0;
 
-	size = sizeof(carc_en);
-	if (sysctlbyname("vfs.zfs.compressed_arc_enabled", &carc_en, &size,
-	    NULL, 0) == 0 && carc_en == 1)
-		carc_enabled = 1;
 	size = sizeof(arc_size);
 	if (sysctlbyname("kstat.zfs.misc.arcstats.size", &arc_size, &size,
 	    NULL, 0) == 0 && arc_size != 0)
 		arc_enabled = 1;
+	size = sizeof(carc_en);
+	if (arc_enabled &&
+	    sysctlbyname("vfs.zfs.compressed_arc_enabled", &carc_en, &size,
+	    NULL, 0) == 0 && carc_en == 1)
+		carc_enabled = 1;
 
 	if (do_unames) {
 	    while ((pw = getpwent()) != NULL) {