nr_free_zone_pages(9) count number of pages beyond high watermark

SYNOPSIS

unsigned long nr_free_zone_pages(int offset);

ARGUMENTS

offset

The zone index of the highest zone

DESCRIPTION

nr_free_zone_pages counts the number of counts pages which are beyond the high watermark within all zones at or below a given zone index. For each zone, the number of pages is calculated as: managed_pages - high_pages

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