diff options
| -rw-r--r-- | drivers/md/dm-ioctl.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 96df89a31f42..966eb4b61aed 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1267,6 +1267,15 @@ static int populate_table(struct dm_table *table, return dm_table_complete(table); } +static bool is_valid_type(unsigned cur, unsigned new) +{ + if (cur == new || + (cur == DM_TYPE_BIO_BASED && new == DM_TYPE_DAX_BIO_BASED)) + return true; + + return false; +} + static int table_load(struct dm_ioctl *param, size_t param_size) { int r; @@ -1309,7 +1318,7 @@ static int table_load(struct dm_ioctl *param, size_t param_size) DMWARN("unable to set up device queue for new table."); goto err_unlock_md_type; } - } else if (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."); r = -EINVAL; goto err_unlock_md_type; |