> +static int __reclaim_pages(struct zone *zone, gfp_t gfp_mask, int count)
> +{
> + /*
> + * Increase level of watermarks to force kswapd do his job
> + * to stabilise at new watermark level.
> + */
> + __update_cma_watermarks(zone, count);
> +
> + /* Obey watermarks as if the page was being allocated */
> + watermark = low_wmark_pages(zone) + count;
> + while (!zone_watermark_ok(zone, 0, watermark, 0, 0)) {
Wouldn't this reclaim (2 * count pages) above low wmark?
You are updating the low wmark first and then adding "count"
for the zone_watermark_ok() check as well ..
Sandeep
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