Hey, For this cycle Jan, Christoph, and myself switched the generic super code to key superblocks for block devices by device number (sb->s_dev) instead of block device pointers (sb->s_bdev). Not just does this allow us to defer opening block devices after we allocated a superblock it also allows us to move closing block devices to a later point to avoid various deadlocks. Similar to the generic code for block devices we need to switch mtd devices to rely on sb->s_dev instead of sb->s_mtd to avoid potential use-after-free issues. I plan on taking this upstream as a fix during the merge window. Thanks! Christian --- --- base-commit: dc3216b1416056b04712e53431f6e9aefdc83177 change-id: 20230829-vfs-super-mtd-1bb602abfc00
