Merge tag 'v3.10-rc1' into stable/for-linus-3.10

Linux 3.10-rc1

* tag 'v3.10-rc1': (12273 commits)
  Linux 3.10-rc1
  [SCSI] qla2xxx: Update firmware link in Kconfig file.
  [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
  [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
  [SCSI] pm80xx: thermal, sas controller config and error handling update
  [SCSI] pm80xx: NCQ error handling changes
  [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
  [SCSI] pm80xx: Changed module name and debug messages update
  [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
  [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
  [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
  [SCSI] pm80xx: MSI-X implementation for using 64 interrupts
  [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
  [SCSI] pm80xx: Multiple inbound/outbound queue configuration
  [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
  [SCSI] lpfc: fix up Kconfig dependencies
  [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
  dm cache: set config value
  dm cache: move config fns
  dm thin: generate event when metadata threshold passed
  ...

1 files changed, 10 insertions, 6 deletions

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 88c5fed8b9a..fa6a85378ee 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -19,6 +19,7 @@
 #include <linux/pagemap.h>
 #include <linux/init.h>
 #include <linux/highmem.h>
+#include <linux/vmpressure.h>
 #include <linux/vmstat.h>
 #include <linux/file.h>
 #include <linux/writeback.h>
@@ -780,7 +781,7 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 		if (PageAnon(page) && !PageSwapCache(page)) {
 			if (!(sc->gfp_mask & __GFP_IO))
 				goto keep_locked;
-			if (!add_to_swap(page))
+			if (!add_to_swap(page, page_list))
 				goto activate_locked;
 			may_enter_fs = 1;
 		}
@@ -1982,6 +1983,11 @@ static void shrink_zone(struct zone *zone, struct scan_control *sc)
 			}
 			memcg = mem_cgroup_iter(root, memcg, &reclaim);
 		} while (memcg);
+
+		vmpressure(sc->gfp_mask, sc->target_mem_cgroup,
+			   sc->nr_scanned - nr_scanned,
+			   sc->nr_reclaimed - nr_reclaimed);
+
 	} while (should_continue_reclaim(zone, sc->nr_reclaimed - nr_reclaimed,
 					 sc->nr_scanned - nr_scanned, sc));
 }
@@ -2167,6 +2173,8 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
 		count_vm_event(ALLOCSTALL);
 
 	do {
+		vmpressure_prio(sc->gfp_mask, sc->target_mem_cgroup,
+				sc->priority);
 		sc->nr_scanned = 0;
 		aborted_reclaim = shrink_zones(zonelist, sc);
 
@@ -2619,7 +2627,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 	bool pgdat_is_balanced = false;
 	int i;
 	int end_zone = 0;	/* Inclusive.  0 = ZONE_DMA */
-	unsigned long total_scanned;
 	struct reclaim_state *reclaim_state = current->reclaim_state;
 	unsigned long nr_soft_reclaimed;
 	unsigned long nr_soft_scanned;
@@ -2639,7 +2646,6 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order,
 		.gfp_mask = sc.gfp_mask,
 	};
 loop_again:
-	total_scanned = 0;
 	sc.priority = DEF_PRIORITY;
 	sc.nr_reclaimed = 0;
 	sc.may_writepage = !laptop_mode;
@@ -2730,7 +2736,6 @@ loop_again:
 							order, sc.gfp_mask,
 							&nr_soft_scanned);
 			sc.nr_reclaimed += nr_soft_reclaimed;
-			total_scanned += nr_soft_scanned;
 
 			/*
 			 * We put equal pressure on every zone, unless
@@ -2765,7 +2770,6 @@ loop_again:
 				reclaim_state->reclaimed_slab = 0;
 				nr_slab = shrink_slab(&shrink, sc.nr_scanned, lru_pages);
 				sc.nr_reclaimed += reclaim_state->reclaimed_slab;
-				total_scanned += sc.nr_scanned;
 
 				if (nr_slab == 0 && !zone_reclaimable(zone))
 					zone->all_unreclaimable = 1;
@@ -3188,9 +3192,9 @@ int kswapd_run(int nid)
 	if (IS_ERR(pgdat->kswapd)) {
 		/* failure at boot is fatal */
 		BUG_ON(system_state == SYSTEM_BOOTING);
-		pgdat->kswapd = NULL;
 		pr_err("Failed to start kswapd on node %d\n", nid);
 		ret = PTR_ERR(pgdat->kswapd);
+		pgdat->kswapd = NULL;
 	}
 	return ret;
 }