Re: [patch 3/9] Guest page hinting: volatile page cache.

[Dave Hansen]

On Fri, 2006-09-01 at 13:09 +0200, Martin Schwidefsky wrote:
> +#define PG_state_change                21      /* HV page state is changing. */
> +#define PG_discarded           22      /* HV page has been discarded. */ 

We're already desperately short on page flags on 32-bit architectures.
It seems a wee bit silly to add two arch-generic flags for what is a
very specialized arch-specific feature at this point.

I know that there are 32-bit s390 kernels, but would this be a
reasonable feature to restrict to only 64-bit kernels?  That might be a
decent compromise.

-- Dave

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