Commit d0480be4 authored Aug 06, 2014 by Wang Sheng-Hui Committed by Linus Torvalds Aug 06, 2014

mm: update the description for vm_total_pages

vm_total_pages is calculated by nr_free_pagecache_pages(), which counts
the number of pages which are beyond the high watermark within all
zones.  So vm_total_pages is not equal to total number of pages which
the VM controls.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 9aed8614

mm/vmscan.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -137,7 +137,11 @@ struct scan_control {
		* From 0 .. 100. Higher means more swappy.
		*/
		int vm_swappiness = 60;
		unsigned long vm_total_pages; /* The total number of pages which the VM controls */
		/*
		* The total number of pages which are beyond the high watermark within all
		* zones.
		*/
		unsigned long vm_total_pages;

		static LIST_HEAD(shrinker_list);
		static DECLARE_RWSEM(shrinker_rwsem);