From ef6f261454f82e9137599905a02512ae5640ac58 Mon Sep 17 00:00:00 2001
From: tiehexue <tiehexue@hotmail.com>
Date: Wed, 3 Jun 2026 03:31:31 +0800
Subject: [PATCH] When reading a vdev label skip libzfs_core_init()

There's no need to call libzfs_core_init() when `zdb -l` is used to
read a vdev label.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: tiehexue <tiehexue@hotmail.com>
Closes #18606
---
 cmd/zdb/zdb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
index 1dcd70f628b..05e005d929a 100644
--- a/cmd/zdb/zdb.c
+++ b/cmd/zdb/zdb.c
@@ -10230,7 +10230,7 @@ main(int argc, char **argv)
 	 * Automate cachefile
 	 */
 	if (!spa_config_path_env && !config_path_console && target &&
-	    libzfs_core_init() == 0) {
+	    !dump_opt['l'] && libzfs_core_init() == 0) {
 		char *pname = strdup(target);
 		const char *value;
 		nvlist_t *pnvl = NULL;