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Re: [RFC] 2.3.39 zone balancing



On Thu, 13 Jan 2000, Andrea Arcangeli wrote:

> --- 2.3.40pre1/mm/vmscan.c	Sun Jan  9 20:45:31 2000
> +++ /tmp/vmscan.c	Thu Jan 13 21:09:33 2000
> @@ -503,7 +503,7 @@
>  		do {
>  			/* kswapd is critical to provide GFP_ATOMIC
>  			   allocations (not GFP_HIGHMEM ones). */
> -			if (nr_free_buffer_pages() >= freepages.high)
> +			if (nr_free_pages() - nr_free_highpages() >= freepages.high)
>  				break;
>  			if (!do_try_to_free_pages(GFP_KSWAPD, 0))
>  				break;

Indeed. Linus, please apply this patch...

Btw, shouldn't we make do_try_to_free_pages() a bit smarter
so that it doesn't free high memory pages when there are
enough free pages in that part of memory.

regards,

Rik
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