X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Fvmscan.c;h=4046434046e68b0a45864c019a095fab088420ee;hb=b84888215310002e3d266d5a7fe458bb224f6881;hp=a26dabd62fed40c8ec7832dc4656feaf7d3909f9;hpb=c58310bf4933986513020fa90b4190c7492995ae;p=linux-2.6-omap-h63xx.git

diff --git a/mm/vmscan.c b/mm/vmscan.c
index a26dabd62fe..4046434046e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -70,13 +70,6 @@ struct scan_control {
 
 	int order;
 
-	/*
-	 * Pages that have (or should have) IO pending.  If we run into
-	 * a lot of these, we're better off waiting a little for IO to
-	 * finish rather than scanning more pages in the VM.
-	 */
-	int nr_io_pages;
-
 	/* Which cgroup do we reclaim from */
 	struct mem_cgroup *mem_cgroup;
 
@@ -126,7 +119,7 @@ long vm_total_pages;	/* The total number of pages which the VM controls */
 static LIST_HEAD(shrinker_list);
 static DECLARE_RWSEM(shrinker_rwsem);
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 #define scan_global_lru(sc)	(!(sc)->mem_cgroup)
 #else
 #define scan_global_lru(sc)	(1)
@@ -512,10 +505,8 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 			 */
 			if (sync_writeback == PAGEOUT_IO_SYNC && may_enter_fs)
 				wait_on_page_writeback(page);
-			else {
-				sc->nr_io_pages++;
+			else
 				goto keep_locked;
-			}
 		}
 
 		referenced = page_referenced(page, 1, sc->mem_cgroup);
@@ -554,10 +545,8 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 		if (PageDirty(page)) {
 			if (sc->order <= PAGE_ALLOC_COSTLY_ORDER && referenced)
 				goto keep_locked;
-			if (!may_enter_fs) {
-				sc->nr_io_pages++;
+			if (!may_enter_fs)
 				goto keep_locked;
-			}
 			if (!sc->may_writepage)
 				goto keep_locked;
 
@@ -568,10 +557,8 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 			case PAGE_ACTIVATE:
 				goto activate_locked;
 			case PAGE_SUCCESS:
-				if (PageWriteback(page) || PageDirty(page)) {
-					sc->nr_io_pages++;
+				if (PageWriteback(page) || PageDirty(page))
 					goto keep;
-				}
 				/*
 				 * A synchronous write - probably a ramdisk.  Go
 				 * ahead and try to reclaim the page.
@@ -1128,7 +1115,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 		ClearPageActive(page);
 
 		list_move(&page->lru, &zone->inactive_list);
-		mem_cgroup_move_lists(page_get_page_cgroup(page), false);
+		mem_cgroup_move_lists(page, false);
 		pgmoved++;
 		if (!pagevec_add(&pvec, page)) {
 			__mod_zone_page_state(zone, NR_INACTIVE, pgmoved);
@@ -1156,8 +1143,9 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
 		VM_BUG_ON(PageLRU(page));
 		SetPageLRU(page);
 		VM_BUG_ON(!PageActive(page));
+
 		list_move(&page->lru, &zone->active_list);
-		mem_cgroup_move_lists(page_get_page_cgroup(page), true);
+		mem_cgroup_move_lists(page, true);
 		pgmoved++;
 		if (!pagevec_add(&pvec, page)) {
 			__mod_zone_page_state(zone, NR_ACTIVE, pgmoved);
@@ -1343,7 +1331,6 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask,
 
 	for (priority = DEF_PRIORITY; priority >= 0; priority--) {
 		sc->nr_scanned = 0;
-		sc->nr_io_pages = 0;
 		if (!priority)
 			disable_swap_token();
 		nr_reclaimed += shrink_zones(priority, zones, sc);
@@ -1378,8 +1365,7 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask,
 		}
 
 		/* Take a nap, wait for some writeback to complete */
-		if (sc->nr_scanned && priority < DEF_PRIORITY - 2 &&
-				sc->nr_io_pages > sc->swap_cluster_max)
+		if (sc->nr_scanned && priority < DEF_PRIORITY - 2)
 			congestion_wait(WRITE, HZ/10);
 	}
 	/* top priority shrink_caches still had more to do? don't OOM, then */
@@ -1427,7 +1413,7 @@ unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask)
 	return do_try_to_free_pages(zones, gfp_mask, &sc);
 }
 
-#ifdef CONFIG_CGROUP_MEM_CONT
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
 
 unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
 						gfp_t gfp_mask)
@@ -1513,7 +1499,6 @@ loop_again:
 		if (!priority)
 			disable_swap_token();
 
-		sc.nr_io_pages = 0;
 		all_zones_ok = 1;
 
 		/*
@@ -1606,8 +1591,7 @@ loop_again:
 		 * OK, kswapd is getting into trouble.  Take a nap, then take
 		 * another pass across the zones.
 		 */
-		if (total_scanned && priority < DEF_PRIORITY - 2 &&
-					sc.nr_io_pages > sc.swap_cluster_max)
+		if (total_scanned && priority < DEF_PRIORITY - 2)
 			congestion_wait(WRITE, HZ/10);
 
 		/*