From b2b04e7e2d3bffd301d1769700ba013f58ca01b7 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 18 May 2018 10:39:20 -0400 Subject: [PATCH] dm: report which conflicting type caused error during table_load() Eases troubleshooting to know the before vs after types. Signed-off-by: Mike Snitzer --- 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; }