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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2008-04-30 00:52:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:30 -0700
commit41b25a3784c137ad52c71619c73b925860b1b3a2 (patch)
tree4c7e858a692c8ffa41294d661e8f10d58927ed67 /mm/vmstat.c
parent2f3517418dc0684a32318f2c5b53257416448b1e (diff)
downloadvexpress-lsk-41b25a3784c137ad52c71619c73b925860b1b3a2.tar.gz
/proc/pagetypeinfo: fix output for memoryless nodes
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@jp.fujitsu.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index ec6035eda93..280a7ed549f 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -548,6 +548,10 @@ static int pagetypeinfo_show(struct seq_file *m, void *arg)
{
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');