nr_free_pagecache_pages() isn't used outside page_alloc.c anymore - and
the name does not really help to understand what's going on. Let's inline
it instead and add a comment.
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Huang Ying <ying.huang@xxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
include/linux/swap.h | 1 -
mm/page_alloc.c | 16 ++--------------
2 files changed, 2 insertions(+), 15 deletions(-)
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 124261acd5d0a..9bde6c6b2c045 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -327,7 +327,6 @@ void workingset_update_node(struct xa_node *node);
/* linux/mm/page_alloc.c */
extern unsigned long totalreserve_pages;
extern unsigned long nr_free_buffer_pages(void);
-extern unsigned long nr_free_pagecache_pages(void);
/* Definition of global_zone_page_state not available yet */
#define nr_free_pages() global_zone_page_state(NR_FREE_PAGES)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7b0dde69748c1..c38903d1b3b4d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5177,19 +5177,6 @@ unsigned long nr_free_buffer_pages(void)
}
EXPORT_SYMBOL_GPL(nr_free_buffer_pages);
-/**
- * nr_free_pagecache_pages - count number of pages beyond high watermark
- *
- * nr_free_pagecache_pages() counts the number of pages which are beyond the
- * high watermark within all zones.
- *
- * Return: number of pages beyond high watermark within all zones.
- */
-unsigned long nr_free_pagecache_pages(void)
-{
- return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER_MOVABLE));
-}
-
static inline void show_node(struct zone *zone)
{
if (IS_ENABLED(CONFIG_NUMA))
@@ -5911,7 +5898,8 @@ void __ref build_all_zonelists(pg_data_t *pgdat)
__build_all_zonelists(pgdat);
/* cpuset refresh routine should be here */
}
- vm_total_pages = nr_free_pagecache_pages();
+ /* Get the number of free pages beyond high watermark in all zones. */
+ vm_total_pages = nr_free_zone_pages(gfp_zone(GFP_HIGHUSER_MOVABLE));
/*
* Disable grouping by mobility if the number of pages in the
* system is too low to allow the mechanism to work. It would be
--
2.26.2
