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-rw-r--r--fs/buffer.c8
-rw-r--r--include/linux/swap.h2
-rw-r--r--mm/page_alloc.c2
-rw-r--r--mm/vmscan.c21
4 files changed, 18 insertions, 15 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 8b9807523efe..1dae94acb3fe 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -360,16 +360,16 @@ void invalidate_bdev(struct block_device *bdev)
*/
static void free_more_memory(void)
{
- struct zone **zones;
+ struct zonelist *zonelist;
pg_data_t *pgdat;
wakeup_pdflush(1024);
yield();
for_each_online_pgdat(pgdat) {
- zones = pgdat->node_zonelists[gfp_zone(GFP_NOFS)].zones;
- if (*zones)
- try_to_free_pages(zones, 0, GFP_NOFS);
+ zonelist = &pgdat->node_zonelists[gfp_zone(GFP_NOFS)];
+ if (zonelist->zones[0])
+ try_to_free_pages(zonelist, 0, GFP_NOFS);
}
}
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 878459ae0454..4286e7ac2b00 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -181,7 +181,7 @@ extern int rotate_reclaimable_page(struct page *page);
extern void swap_setup(void);
/* linux/mm/vmscan.c */
-extern unsigned long try_to_free_pages(struct zone **zones, int order,
+extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
gfp_t gfp_mask);
extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem,
gfp_t gfp_mask);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 32e796af12a1..1bda771a072a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1569,7 +1569,7 @@ nofail_alloc:
reclaim_state.reclaimed_slab = 0;
p->reclaim_state = &reclaim_state;
- did_some_progress = try_to_free_pages(zonelist->zones, order, gfp_mask);
+ did_some_progress = try_to_free_pages(zonelist, order, gfp_mask);
p->reclaim_state = NULL;
p->flags &= ~PF_MEMALLOC;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index f80a5b7c057f..ef8551e0d2d0 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1246,10 +1246,11 @@ static unsigned long shrink_zone(int priority, struct zone *zone,
* If a zone is deemed to be full of pinned pages then just give it a light
* scan then give up on it.
*/
-static unsigned long shrink_zones(int priority, struct zone **zones,
+static unsigned long shrink_zones(int priority, struct zonelist *zonelist,
struct scan_control *sc)
{
unsigned long nr_reclaimed = 0;
+ struct zone **zones = zonelist->zones;
int i;
@@ -1301,8 +1302,8 @@ static unsigned long shrink_zones(int priority, struct zone **zones,
* holds filesystem locks which prevent writeout this might not work, and the
* allocation attempt will fail.
*/
-static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask,
- struct scan_control *sc)
+static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
+ gfp_t gfp_mask, struct scan_control *sc)
{
int priority;
int ret = 0;
@@ -1310,6 +1311,7 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask,
unsigned long nr_reclaimed = 0;
struct reclaim_state *reclaim_state = current->reclaim_state;
unsigned long lru_pages = 0;
+ struct zone **zones = zonelist->zones;
int i;
if (scan_global_lru(sc))
@@ -1333,7 +1335,7 @@ static unsigned long do_try_to_free_pages(struct zone **zones, gfp_t gfp_mask,
sc->nr_scanned = 0;
if (!priority)
disable_swap_token();
- nr_reclaimed += shrink_zones(priority, zones, sc);
+ nr_reclaimed += shrink_zones(priority, zonelist, sc);
/*
* Don't shrink slabs when reclaiming memory from
* over limit cgroups
@@ -1397,7 +1399,8 @@ out:
return ret;
}
-unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask)
+unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
+ gfp_t gfp_mask)
{
struct scan_control sc = {
.gfp_mask = gfp_mask,
@@ -1410,7 +1413,7 @@ unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask)
.isolate_pages = isolate_pages_global,
};
- return do_try_to_free_pages(zones, gfp_mask, &sc);
+ return do_try_to_free_pages(zonelist, gfp_mask, &sc);
}
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
@@ -1428,11 +1431,11 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont,
.mem_cgroup = mem_cont,
.isolate_pages = mem_cgroup_isolate_pages,
};
- struct zone **zones;
+ struct zonelist *zonelist;
int target_zone = gfp_zone(GFP_HIGHUSER_MOVABLE);
- zones = NODE_DATA(numa_node_id())->node_zonelists[target_zone].zones;
- if (do_try_to_free_pages(zones, sc.gfp_mask, &sc))
+ zonelist = &NODE_DATA(numa_node_id())->node_zonelists[target_zone];
+ if (do_try_to_free_pages(zonelist, sc.gfp_mask, &sc))
return 1;
return 0;
}