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mm: remove unused pgdat->inactive_ratio 

Since commit 59dc76b0d4 ("mm: vmscan: reduce size of inactive file
list") 'pgdat->inactive_ratio' is not used, except for printing
"node_inactive_ratio: 0" in /proc/zoneinfo output.

Remove it.

Link: http://lkml.kernel.org/r/20171003152611.27483-1-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Ryabinin 2017-11-15 17:34:15 -08:00 committed by Linus Torvalds
parent 4645b9fe84
commit 3a50d14d0d
3 changed files with 3 additions and 11 deletions
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6
include/linux/mmzone.h
View File

@ -712,12 +712,6 @@ typedef struct pglist_data {
/* Fields commonly accessed by the page reclaim scanner */
struct lruvec lruvec;
/*
* The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on
* this node's LRU. Maintained by the pageout code.
*/
unsigned int inactive_ratio;
unsigned long flags;
ZONE_PADDING(_pad2_)

2
mm/vmscan.c
View File

@ -2082,7 +2082,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
* If that fails and refaulting is observed, the inactive list grows.
*
* The inactive_ratio is the target ratio of ACTIVE to INACTIVE pages
* on this LRU, maintained by the pageout code. A zone->inactive_ratio
* on this LRU, maintained by the pageout code. An inactive_ratio
* of 3 means 3:1 or 25% of the pages are kept on the inactive list.
*
* total target max

6
mm/vmstat.c
View File

@ -1564,11 +1564,9 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
}
seq_printf(m,
"\n node_unreclaimable: %u"
"\n start_pfn: %lu"
"\n node_inactive_ratio: %u",
"\n start_pfn: %lu",
pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES,
zone->zone_start_pfn,
zone->zone_pgdat->inactive_ratio);
zone->zone_start_pfn);
seq_putc(m, '\n');
}