From b2b04e7e2d3bffd301d1769700ba013f58ca01b7 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 18 May 2018 10:39:20 -0400
Subject: [PATCH] dm: report which conflicting type caused error during
table_load()
Git-commit: b2b04e7e2d3bffd301d1769700ba013f58ca01b7
References: bsc#1111974
Patch-mainline: v4.18-rc1
Eases troubleshooting to know the before vs after types.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/dm-ioctl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 5acf77de5945..b810ea77e6b1 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1344,7 +1344,8 @@ static int table_load(struct file *filp, struct dm_ioctl *param, size_t param_si
goto err_unlock_md_type;
}
} else if (!is_valid_type(dm_get_md_type(md), dm_table_get_type(t))) {
- DMWARN("can't change device type after initial table load.");
+ DMWARN("can't change device type (old=%u vs new=%u) after initial table load.",
+ dm_get_md_type(md), dm_table_get_type(t));
r = -EINVAL;
goto err_unlock_md_type;
}
--
2.19.0