The patch titled
/proc/pagetypeinfo: fix output for memoryless nodes
has been added to the -mm tree. Its filename is
proc-pagetypeinfo-fix-output-for-memoryless-nodes.patch
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Subject: /proc/pagetypeinfo: fix output for memoryless nodes
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
on memoryless node, /proc/pagetypeinfo is displayed slightly funny output.
this patch fix it.
output example (header is outputed, but no data is outputed)
--------------------------------------------------------------
Page block order: 14
Pages per block: 16384
Free pages count per migrate type at order 0 1 2 3 4 5 \
6 7 8 9 10 11 12 13 14 15 16
Number of blocks type Unmovable Reclaimable Movable Reserve Isolate
Page block order: 14
Pages per block: 16384
Free pages count per migrate type at order 0 1 2 3 4 5 \
6 7 8 9 10 11 12 13 14 15 16
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Mel Gorman <mel@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN mm/vmstat.c~proc-pagetypeinfo-fix-output-for-memoryless-nodes mm/vmstat.c
--- a/mm/vmstat.c~proc-pagetypeinfo-fix-output-for-memoryless-nodes
+++ a/mm/vmstat.c
@@ -548,6 +548,10 @@ static int pagetypeinfo_show(struct seq_
{
pg_data_t *pgdat = (pg_data_t *)arg;
+ /* check memoryless node */
+ if (!node_state(pgdat->node_id, N_HIGH_MEMORY))
+ return 0;
+
seq_printf(m, "Page block order: %d\n", pageblock_order);
seq_printf(m, "Pages per block: %lu\n", pageblock_nr_pages);
seq_putc(m, '\n');
_
Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are
origin.patch
memcgroup-make-the-memory-controller-more-desktop-responsive.patch
proc-pagetypeinfo-fix-output-for-memoryless-nodes.patch
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