mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo
After "mm, vmstat: print non-populated zones in zoneinfo", /proc/zoneinfo will show unpopulated zones. The per-cpu pageset statistics are not relevant for unpopulated zones and can be potentially lengthy, so supress them when they are not interesting. Also moves lowmem reserve protection information above pcp stats since it is relevant for all zones per vm.lowmem_reserve_ratio. Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1703061400500.46428@chino.kir.corp.google.com Signed-off-by: David Rientjes <rientjes@google.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
b2bd859819
commit
7dfb8bf3b9
20
mm/vmstat.c
20
mm/vmstat.c
|
@ -1393,18 +1393,24 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
|
|||
zone->present_pages,
|
||||
zone->managed_pages);
|
||||
|
||||
for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
|
||||
seq_printf(m, "\n %-12s %lu", vmstat_text[i],
|
||||
zone_page_state(zone, i));
|
||||
|
||||
seq_printf(m,
|
||||
"\n protection: (%ld",
|
||||
zone->lowmem_reserve[0]);
|
||||
for (i = 1; i < ARRAY_SIZE(zone->lowmem_reserve); i++)
|
||||
seq_printf(m, ", %ld", zone->lowmem_reserve[i]);
|
||||
seq_printf(m,
|
||||
")"
|
||||
"\n pagesets");
|
||||
seq_putc(m, ')');
|
||||
|
||||
/* If unpopulated, no other information is useful */
|
||||
if (!populated_zone(zone)) {
|
||||
seq_putc(m, '\n');
|
||||
return;
|
||||
}
|
||||
|
||||
for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
|
||||
seq_printf(m, "\n %-12s %lu", vmstat_text[i],
|
||||
zone_page_state(zone, i));
|
||||
|
||||
seq_printf(m, "\n pagesets");
|
||||
for_each_online_cpu(i) {
|
||||
struct per_cpu_pageset *pageset;
|
||||
|
||||
|
|
Loading…
Reference in a new issue