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

[Serge E. Hallyn]

Quoting Sukadev Bhattiprolu (sukadev at 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
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