From 5cd2c4891f9f89780e19290dafe9f82703f34aa7 Mon Sep 17 00:00:00 2001
From: Xin LI <delphij@FreeBSD.org>
Date: Sat, 13 Sep 2014 15:27:46 +0000
Subject: [PATCH] 5134 if ZFS_DEBUG or debug= is set, libzpool should enable
 debug prints Reviewed by: Adam Leventhal <adam.leventhal@delphix.com>
 Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by:
 George Wilson <george.wilson@delphix.com> Reviewed by: Saso Kiselkov
 <skiselkov.ml@gmail.com> Approved by: Dan McDonald <danmcd@omniti.com>
 Author: Matthew Ahrens <mahrens@delphix.com>

illumos/illumos-gate@7fa49ea5e7d23077615525b1738f90f273258b05
---
 lib/libzpool/common/kernel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/libzpool/common/kernel.c b/lib/libzpool/common/kernel.c
index 418ef435b00..5e329733e11 100644
--- a/lib/libzpool/common/kernel.c
+++ b/lib/libzpool/common/kernel.c
@@ -629,6 +629,9 @@ dprintf_setup(int *argc, char **argv)
 	 */
 	if (dprintf_find_string("on"))
 		dprintf_print_all = 1;
+
+	if (dprintf_string != NULL)
+		zfs_flags |= ZFS_DEBUG_DPRINTF;
 }
 
 /*