On Thu, 2006-11-02 at 09:52 +0530, suman adak wrote:
> i have seen this struct task in schd.h file
> struct task_struct {
> volatile long state; /* -1 unrunnable, 0 runnable, >0
> stopped */
> struct thread_info *thread_info;
> atomic_t usage;
> unsigned long flags;
> ........
> ........
> }
>
> can anybody pointout me , why state variable is declared as long. I
> wrote one simple module programming to print state value for each
> task.
> I have seen the it is returning 0 or 1 only. Is it not wastage of
> kernel memory declaring as long type as we can do with short int?
> Or i am missing something else..
Maybe for cache aligning purposes..
>
> Thanks
> Suman
>
>
>
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