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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>
This commit is contained in:
Mike Snitzer 2018-05-18 10:39:20 -04:00
parent 2a2a4c510b
commit b2b04e7e2d
1 changed files with 2 additions and 1 deletions
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3
drivers/md/dm-ioctl.c
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@ -1344,7 +1344,8 @@ static int table_load(struct file *filp, struct dm_ioctl *param, size_t param_si
goto err_unlock_md_type; goto err_unlock_md_type;
} }
} else if (!is_valid_type(dm_get_md_type(md), dm_table_get_type(t))) { } 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; r = -EINVAL;
goto err_unlock_md_type; goto err_unlock_md_type;
} }