Re: [PATCH] nilfs2: no longer save to shadow map if the num of members is too small

[Edward Adam Davis]

Have you been following the path below? If the argv0.v_nmembs value
passed from userspace is greater than 0, everything will function normally.

nilfs_ioctl_clean_segments()->
  nilfs_ioctl_move_blocks()->
    nilfs_iget_for_gc()->
      nilfs_init_gcinode()->
        nilfs_attach_btree_node_cache()

Causing the mount to fail solely because the dat B-tree wasn't initialized
is an excessive fix.

BR,
Edward