On 12/21/20 8:30 AM, Liang Li wrote:
> --- a/include/linux/page-flags.h
> +++ b/include/linux/page-flags.h
> @@ -137,6 +137,9 @@ enum pageflags {
> #endif
> #ifdef CONFIG_64BIT
> PG_arch_2,
> +#endif
> +#ifdef CONFIG_PREZERO_PAGE
> + PG_zero,
> #endif
> __NR_PAGEFLAGS,
I don't think this is worth a generic page->flags bit.
There's a ton of space in 'struct page' for pages that are in the
allocator. Can't we use some of that space?
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