From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 18 May 2018 14:39:20 +0000 (-0400)
Subject: dm: report which conflicting type caused error during table_load()
X-Git-Tag: v5.15~8614^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b2b04e7e2d3bffd301d1769700ba013f58ca01b7;p=platform%2Fkernel%2Flinux-starfive.git

dm: report which conflicting type caused error during table_load()

Eases troubleshooting to know the before vs after types.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 5acf77d..b810ea7 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;
 	}