From d9549cba9640cd3b09d76b8cbd54387728b7be24 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Arkadiusz=20Buba=C5=82a?= <arkadiusz.bubala@open-e.com>
Date: Mon, 11 Sep 2017 19:25:01 +0200
Subject: [PATCH] Fix false config_cache_write events
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

On pool import when the old cache file is removed
the ereport.fs.zfs.config_cache_write event is generated.
Because zpool export always removes cache file it happens
every export - import sequence.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Arkadiusz Bubała <arkadiusz.bubala@open-e.com>
Closes #6617
---
 module/zfs/spa_config.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/module/zfs/spa_config.c b/module/zfs/spa_config.c
index 7e712d368..8459e7362 100644
--- a/module/zfs/spa_config.c
+++ b/module/zfs/spa_config.c
@@ -162,6 +162,11 @@ spa_config_write(spa_config_dirent_t *dp, nvlist_t *nvl)
 	 */
 	if (nvl == NULL) {
 		err = vn_remove(dp->scd_path, UIO_SYSSPACE, RMFILE);
+		/*
+		 * Don't report an error when the cache file is already removed
+		 */
+		if (err == ENOENT)
+			err = 0;
 		return (err);
 	}
 
-- 
2.40.0