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authorWu Fengguang <fengguang.wu@intel.com>2009-06-16 15:32:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-16 19:47:39 -0700
commit08d9ae7cbbd0c5c07573d072ec771e997a9a39e0 (patch)
treee669cd3eb5a84842c798af936c9e5642765b556f /mm/vmstat.c
parent6e08a369ee10b361ac1cdcdf4fabd420fd08beb3 (diff)
downloadvexpress-lsk-08d9ae7cbbd0c5c07573d072ec771e997a9a39e0.tar.gz
vmscan: don't export nr_saved_scan in /proc/zoneinfo
The lru->nr_saved_scan's are not meaningful counters for even kernel developers. They typically are smaller than 32 and are always 0 for large lists. So remove them from /proc/zoneinfo. Hopefully this interface change won't break too many scripts. /proc/zoneinfo is too unstructured to be script friendly, and I wonder the affected scripts - if there are any - are still bleeding since the not long ago commit "vmscan: split LRU lists into anon & file sets", which also touched the "scanned" line :) If we are to re-export accumulated vmscan counts in the future, they can go to new lines in /proc/zoneinfo instead of the current form, or to /sys/devices/system/node/node0/meminfo? Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: Nick Piggin <npiggin@suse.de> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> 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.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 84c05555691..1e151cf6bf8 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -710,7 +710,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
"\n min %lu"
"\n low %lu"
"\n high %lu"
- "\n scanned %lu (aa: %lu ia: %lu af: %lu if: %lu)"
+ "\n scanned %lu"
"\n spanned %lu"
"\n present %lu",
zone_page_state(zone, NR_FREE_PAGES),
@@ -718,10 +718,6 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
low_wmark_pages(zone),
high_wmark_pages(zone),
zone->pages_scanned,
- zone->lru[LRU_ACTIVE_ANON].nr_saved_scan,
- zone->lru[LRU_INACTIVE_ANON].nr_saved_scan,
- zone->lru[LRU_ACTIVE_FILE].nr_saved_scan,
- zone->lru[LRU_INACTIVE_FILE].nr_saved_scan,
zone->spanned_pages,
zone->present_pages);