Clear the read-only flag if the table is not read only. --- diff/drivers/md/dm-ioctl-v4.c 2003-07-01 15:36:42.000000000 +0100 +++ source/drivers/md/dm-ioctl-v4.c 2003-07-02 11:27:50.000000000 +0100 @@ -650,7 +650,9 @@ return r; } - if (!(dm_table_get_mode(new_map) & FMODE_WRITE)) + if (dm_table_get_mode(new_map) & FMODE_WRITE) + set_disk_ro(dm_disk(md), 0); + else set_disk_ro(dm_disk(md), 1); dm_table_put(new_map);