The patch titled
Subject: mm: update the description for vm_total_pages
has been added to the -mm tree. Its filename is
mm-update-the-description-for-vm_total_pages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-update-the-description-for-vm_total_pages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-update-the-description-for-vm_total_pages.patch
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------------------------------------------------------
From: Wang Sheng-Hui <shhuiw@xxxxxxxxx>
Subject: 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@xxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff -puN mm/vmscan.c~mm-update-the-description-for-vm_total_pages mm/vmscan.c
--- a/mm/vmscan.c~mm-update-the-description-for-vm_total_pages
+++ a/mm/vmscan.c
@@ -136,7 +136,11 @@ 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);
_
Patches currently in -mm which might be from shhuiw@xxxxxxxxx are
mm-update-the-description-for-madvise_remove.patch
mm-update-the-description-for-vm_total_pages.patch
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