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Commit 3a50d14d authored by Andrey Ryabinin's avatar Andrey Ryabinin Committed by Linus Torvalds
Browse files

mm: remove unused pgdat->inactive_ratio 

Since commit 59dc76b0 ("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: default avatarAndrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: default avatarRik van Riel <riel@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 4645b9fe

include/linux/mmzone.h

+0 −6
Original line number Diff line number Diff line
@@ -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_)

mm/vmscan.c

+1 −1
Original line number Diff line number Diff line
@@ -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

mm/vmstat.c

+2 −4
Original line number Diff line number Diff line
@@ -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');

}