Re: [PATCH] mm: implement swap prefetching

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Con Kolivas <[email protected]> wrote:
>
>  > > +/* Last total free pages */
>  > > +static unsigned long last_free = 0;
>  > > +static unsigned long temp_free = 0;
>  >
>  > Unneeded initialisation.
> 
>  Very first use of both of these variables depends on them being initialised.

All bss is initialised to zero at bootup.  So all the `= 0' is doing here
is moving these variables from .bss to .data, and taking up extra space in
vmlinux.

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