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* [PATCH] mm: Remove unused pgdat_reclaimable_pages()
@ 2017-11-22  9:44 Jan Kara
  2017-11-22 13:04 ` Michal Hocko
  0 siblings, 1 reply; 2+ messages in thread
From: Jan Kara @ 2017-11-22  9:44 UTC (permalink / raw)
  To: linux-mm; +Cc: Andrew Morton, Jan Kara

Remove unused function pgdat_reclaimable_pages() and
node_page_state_snapshot() which becomes unused as well.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 include/linux/swap.h   |  1 -
 include/linux/vmstat.h | 17 -----------------
 mm/vmscan.c            | 16 ----------------
 3 files changed, 34 deletions(-)

diff --git a/include/linux/swap.h b/include/linux/swap.h
index c2b8128799c1..bad03a01327a 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -345,7 +345,6 @@ extern void lru_cache_add_active_or_unevictable(struct page *page,
 
 /* linux/mm/vmscan.c */
 extern unsigned long zone_reclaimable_pages(struct zone *zone);
-extern unsigned long pgdat_reclaimable_pages(struct pglist_data *pgdat);
 extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
 					gfp_t gfp_mask, nodemask_t *mask);
 extern int __isolate_lru_page(struct page *page, isolate_mode_t mode);
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 1779c9817b39..a4c2317d8b9f 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -216,23 +216,6 @@ static inline unsigned long zone_page_state_snapshot(struct zone *zone,
 	return x;
 }
 
-static inline unsigned long node_page_state_snapshot(pg_data_t *pgdat,
-					enum node_stat_item item)
-{
-	long x = atomic_long_read(&pgdat->vm_stat[item]);
-
-#ifdef CONFIG_SMP
-	int cpu;
-	for_each_online_cpu(cpu)
-		x += per_cpu_ptr(pgdat->per_cpu_nodestats, cpu)->vm_node_stat_diff[item];
-
-	if (x < 0)
-		x = 0;
-#endif
-	return x;
-}
-
-
 #ifdef CONFIG_NUMA
 extern void __inc_numa_state(struct zone *zone, enum numa_stat_item item);
 extern unsigned long sum_zone_node_page_state(int node,
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c02c850ea349..2b4c37dd77a4 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -220,22 +220,6 @@ unsigned long zone_reclaimable_pages(struct zone *zone)
 	return nr;
 }
 
-unsigned long pgdat_reclaimable_pages(struct pglist_data *pgdat)
-{
-	unsigned long nr;
-
-	nr = node_page_state_snapshot(pgdat, NR_ACTIVE_FILE) +
-	     node_page_state_snapshot(pgdat, NR_INACTIVE_FILE) +
-	     node_page_state_snapshot(pgdat, NR_ISOLATED_FILE);
-
-	if (get_nr_swap_pages() > 0)
-		nr += node_page_state_snapshot(pgdat, NR_ACTIVE_ANON) +
-		      node_page_state_snapshot(pgdat, NR_INACTIVE_ANON) +
-		      node_page_state_snapshot(pgdat, NR_ISOLATED_ANON);
-
-	return nr;
-}
-
 /**
  * lruvec_lru_size -  Returns the number of pages on the given LRU list.
  * @lruvec: lru vector
-- 
2.12.3

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^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2017-11-22 13:05 UTC | newest]

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2017-11-22  9:44 [PATCH] mm: Remove unused pgdat_reclaimable_pages() Jan Kara
2017-11-22 13:04 ` Michal Hocko

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