| inode = mkinode(m, md, boolvar, m0, m1, m2), ¬ isdir, afs-cons(dirs, files), m ∈ files, n1 ≤ # buf + n0, n0 + n ≤ n1, n0 + n ≤ m2, n ≤ # buf ⊦ ⟪while err = ESUCCESS ∧ ¬ isdir do vfs_read_block#(n0, n1, inode, dirs, files, asynced; buf, n, isdir, err)⟫ true, err = ESUCCESS |