Re: [v11][PATCH 9/9] Document clone_with_pids() syscall

Serge E. Hallyn
2009-11-06T18:39:43Z

Quoting Sukadev Bhattiprolu (sukadev@us.ibm.com):
...
> + If a pid in the @pids list is non-zero, the kernel tries to assign
> + the specified pid in that namespace. If that pid is already in use
> + by another process, the system call fails (see EBUSY below).
> +
> + The order of pids in @pids is oldest in pids[0] to youngest pid
> + namespace in pids[nr_pids-1]. If the number of pids specified in the

In the sys_choosepid() discussion, Matt suggested it would be more
user-friendly to have the pid for the youngest pidns be pids[0].
That way the user doesn't have to know their pidns depth.

-serge