On Sat, Jul 19, 2025 at 10:44:03AM +0800, Zizhi Wo wrote: > mkfs.ext4 -F /dev/sdb > mount /dev/sdb /mnt > mknod /dev/test b 8 16 # [sdb 8:16] > echo 1 > /sys/block/sdb/device/delete > mount /dev/test /mnt1 # -> mount success > > Therefore, it is necessary to add an extra check. Solve this problem by > checking disk_live() in super_s_dev_test(). That smells like a wrong approach... You are counting upon the failure of setup_bdev_super() after the thing is forced on the "no reuse" path, and that's too convoluted and brittle...
