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Commit 33e077bd authored by Minchan Kim's avatar Minchan Kim Committed by Linus Torvalds
Browse files

mm: show node_pages_scanned per node, not zone 

The node_pages_scanned represents the number of scanned pages of node
for reclaim so it's pointless to show it as kilobytes.

As well, node_pages_scanned is per-node value, not per-zone.

This patch changes node_pages_scanned per-zone-killobytes with
per-node-count.

[minchan@kernel.org: fix node_pages_scanned]
  Link: http://lkml.kernel.org/r/20160716101431.GA10305@bbox
Link: http://lkml.kernel.org/r/1468588165-12461-5-git-send-email-mgorman@techsingularity.net


Signed-off-by: default avatarMinchan Kim <minchan@kernel.org>
Signed-off-by: default avatarMel Gorman <mgorman@techsingularity.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 68eb0731

mm/page_alloc.c

+3 −3
Original line number Diff line number Diff line
@@ -4313,6 +4313,7 @@ void show_free_areas(unsigned int filter) 
#endif

			" writeback_tmp:%lukB"

			" unstable:%lukB"

			" pages_scanned:%lu"

			" all_unreclaimable? %s"

			"\n",

			pgdat->node_id,
@@ -4335,6 +4336,7 @@ void show_free_areas(unsigned int filter) 
			K(node_page_state(pgdat, NR_SHMEM)),

			K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),

			K(node_page_state(pgdat, NR_UNSTABLE_NFS)),

			node_page_state(pgdat, NR_PAGES_SCANNED),

			!pgdat_reclaimable(pgdat) ? "yes" : "no");

	}
@@ -4365,7 +4367,6 @@ void show_free_areas(unsigned int filter) 
			" free_pcp:%lukB"

			" local_pcp:%ukB"

			" free_cma:%lukB"

			" node_pages_scanned:%lu"

			"\n",

			zone->name,

			K(zone_page_state(zone, NR_FREE_PAGES)),
@@ -4383,8 +4384,7 @@ void show_free_areas(unsigned int filter) 
			K(zone_page_state(zone, NR_BOUNCE)),

			K(free_pcp),

			K(this_cpu_read(zone->pageset->pcp.count)),

			K(zone_page_state(zone, NR_FREE_CMA_PAGES)),

			K(node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED)));

			K(zone_page_state(zone, NR_FREE_CMA_PAGES)));

		printk("lowmem_reserve[]:");

		for (i = 0; i < MAX_NR_ZONES; i++)

			printk(" %ld", zone->lowmem_reserve[i]);