---
name: "nr_free_zone_pages"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/nr_free_zone_pages"
---

# nr\_free\_zone\_pages(9)

count number of pages beyond high watermark

## NAME

nr\_free\_zone\_pages - 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

## COPYRIGHT