bcachefs: Make sure c->vfs_sb is set before starting fs

This is necessary for the new blk_holder_ops, which want the vfs
super_block available for synchronization.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-02-25 22:14:06 -05:00
commit 1fdbe0b184