mm: add zone nr_pages helper function
Add zone_nr_pages() helper function. It is used by a later patch. This patch doesn't have any functional change. Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Hugh Dickins <hugh@veritas.com> 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>
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parent
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15
mm/vmscan.c
15
mm/vmscan.c
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@ -136,6 +136,13 @@ static struct zone_reclaim_stat *get_reclaim_stat(struct zone *zone,
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return &zone->reclaim_stat;
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return &zone->reclaim_stat;
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}
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}
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static unsigned long zone_nr_pages(struct zone *zone, struct scan_control *sc,
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enum lru_list lru)
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{
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return zone_page_state(zone, NR_LRU_BASE + lru);
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}
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/*
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/*
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* Add a shrinker callback to be called from the vm
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* Add a shrinker callback to be called from the vm
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*/
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*/
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@ -1365,10 +1372,10 @@ static void get_scan_ratio(struct zone *zone, struct scan_control *sc,
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return;
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return;
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}
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}
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anon = zone_page_state(zone, NR_ACTIVE_ANON) +
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anon = zone_nr_pages(zone, sc, LRU_ACTIVE_ANON) +
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zone_page_state(zone, NR_INACTIVE_ANON);
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zone_nr_pages(zone, sc, LRU_INACTIVE_ANON);
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file = zone_page_state(zone, NR_ACTIVE_FILE) +
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file = zone_nr_pages(zone, sc, LRU_ACTIVE_FILE) +
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zone_page_state(zone, NR_INACTIVE_FILE);
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zone_nr_pages(zone, sc, LRU_INACTIVE_FILE);
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free = zone_page_state(zone, NR_FREE_PAGES);
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free = zone_page_state(zone, NR_FREE_PAGES);
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/* If we have very few page cache pages, force-scan anon pages. */
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/* If we have very few page cache pages, force-scan anon pages. */
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