Re: List of Processes

["manish regmi" <manish_regmi@xxxxxxxxxxx>]

> one small doubt, shouldn't we be acquiring a lock while iterating over
> all the tasks ?
>
> anupam
>
> > for_each_task(p)
> > {
> > ...
> > }
> >
> > You will each task's descriptor on p on each loop. The first one will be
> > that of init. You will automatically break from loop when you finish
> > traverse through all tasks.
> > Actually a circular list.
> >
> > #define for_each_task(p) \
> >         for (p = &init_task ; (p = p->next_task) != &init_task ; )
> >
> > regards manish
> >

No, Lock is unnecessary here,
we are not manipulating the list, just following the link.
Lock is necessary if you add or remove from the list.

regards manish

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