Remove unused

mm/vmscan.c

@@ -2555,18 +2555,6 @@ static bool shrink_zone(struct zone *zone, struct scan_control *sc,
 				    sc->nr_scanned - nr_scanned,
 				    zone_lru_pages);
 
-		/*
-		 * Record the subtree's reclaim efficiency. The reclaimed
-		 * pages from slab is excluded here because the corresponding
-		 * scanned pages is not accounted. Moreover, freeing a page
-		 * by slab shrinking depends on each slab's object population,
-		 * making the cost model (i.e. scan:free) different from that
-		 * of LRU.
-		 */
-		vmpressure(sc->gfp_mask, sc->target_mem_cgroup,
-			   sc->nr_scanned - nr_scanned,
-			   sc->nr_reclaimed - nr_reclaimed);
-
 		if (reclaim_state) {
 			sc->nr_reclaimed += reclaim_state->reclaimed_slab;
 			reclaim_state->reclaimed_slab = 0;