Linux Kernel MicroPython ps() & task_struct.comm modification

ps.py

from struct_access import container_of, partial_struct
from kernel_ffi import current

task_struct = partial_struct("task_struct")

p = task_struct(current())

# p.<TAB>

from struct_access import dump_struct
dump_struct(p)

while p.pid != 2:
    print("i'm at pid {} comm {!r}".format(p.pid, p.comm.read()))
    p = container_of(p.tasks.next, "task_struct", "tasks")

print(p.comm.read())  # kthreadd
p.comm = "this is very long!!"  # ValueError
p.comm = "this is very lon"  # ValueError
print(p.comm.read())  # this is very lon
# ps -ef | head -n 10