centos man page for nr_free_pagecache_pages

NR_FREE_PAGECACHE_PA(9) 				    Memory Management in Linux					   NR_FREE_PAGECACHE_PA(9)

NAME
       nr_free_pagecache_pages - count number of pages beyond high watermark

SYNOPSIS
       unsigned long nr_free_pagecache_pages(void);

ARGUMENTS
       void
	   no arguments

DESCRIPTION
       nr_free_pagecache_pages counts the number of pages which are beyond the high watermark within all zones.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   NR_FREE_PAGECACHE_PA(9)