task free entries

[Anupam Kapoor <anupamk@iqmail.net>]

Hi all,

I have a simple question regarding process creation:

I understand that all task descriptors are stored in hash (pidhash) so
that fast lookups can be performed given a pid. 

When a new process is created, how is the pid for the new process 
determined ? I would assume that a separate free list is used to
quickly perform a lookup. Is this true ?

I have looked at sched.h (task_struct) but cannot find the relevant
code. Any pointers/clarifications would be greatly appreciated.

tia
anupam

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