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mm: show node_pages_scanned per node, not zone

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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: Minchan Kim <minchan@kernel.org>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Minchan Kim 2016-07-28 15:47:14 -07:00 committed by Linus Torvalds
parent 68eb0731c4
commit 33e077bd60
1 changed files with 3 additions and 3 deletions
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6
mm/page_alloc.c
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@ -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]);