diff --git a/net/core/flow.c b/net/core/flow.c
index f938137..d3a8f80 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -26,7 +26,10 @@
 #include <linux/security.h>
 
 struct flow_cache_entry {
-	struct flow_cache_entry *	next;
+	union {
+		struct hlist_node	hlist;
+		struct list_head	gc_list;
+	} u;
 	u16				family;
 	u8				dir;
 	u32				genid;
@@ -35,7 +38,7 @@ struct flow_cache_entry {
 };
 
 struct flow_cache_percpu {
-	struct flow_cache_entry **	hash_table;
+	struct hlist_head *		hash_table;
 	int				hash_count;
 	u32				hash_rnd;
 	int				hash_rnd_recalc;
@@ -62,6 +65,9 @@ atomic_t flow_cache_genid = ATOMIC_INIT(0);
 static struct flow_cache flow_cache_global;
 static struct kmem_cache *flow_cachep;
 
+static DEFINE_SPINLOCK(flow_cache_gc_lock);
+static LIST_HEAD(flow_cache_gc_list);
+
 #define flow_cache_hash_size(cache)	(1 << (cache)->hash_shift)
 #define FLOW_HASH_RND_PERIOD		(10 * 60 * HZ)
 
@@ -86,38 +92,66 @@ static int flow_entry_valid(struct flow_cache_entry *fle)
 	return 1;
 }
 
-static void flow_entry_kill(struct flow_cache *fc,
-			    struct flow_cache_percpu *fcp,
-			    struct flow_cache_entry *fle)
+static void flow_entry_kill(struct flow_cache_entry *fle)
 {
 	if (fle->ops)
 		(*fle->ops)->delete(fle->ops);
 	kmem_cache_free(flow_cachep, fle);
-	fcp->hash_count--;
+}
+
+static void flow_cache_gc_task(struct work_struct *work)
+{
+	struct list_head gc_list;
+	struct flow_cache_entry *fce, *n;
+
+	INIT_LIST_HEAD(&gc_list);
+	spin_lock_bh(&flow_cache_gc_lock);
+	list_splice_tail_init(&flow_cache_gc_list, &gc_list);
+	spin_unlock_bh(&flow_cache_gc_lock);
+
+	list_for_each_entry_safe(fce, n, &gc_list, u.gc_list)
+		flow_entry_kill(fce);
+}
+static DECLARE_WORK(flow_cache_gc_work, flow_cache_gc_task);
+
+static void flow_cache_queue_garbage(struct flow_cache_percpu *fcp,
+				     int deleted, struct list_head *gc_list)
+{
+	if (deleted) {
+		fcp->hash_count -= deleted;
+		spin_lock_bh(&flow_cache_gc_lock);
+		list_splice_tail(gc_list, &flow_cache_gc_list);
+		spin_unlock_bh(&flow_cache_gc_lock);
+		schedule_work(&flow_cache_gc_work);
+	}
 }
 
 static void __flow_cache_shrink(struct flow_cache *fc,
 				struct flow_cache_percpu *fcp,
 				int shrink_to)
 {
-	struct flow_cache_entry *fle, **flp;
-	int i;
+	struct flow_cache_entry *fle;
+	struct hlist_node *entry, *tmp;
+	LIST_HEAD(gc_list);
+	int i, deleted = 0;
 
 	for (i = 0; i < flow_cache_hash_size(fc); i++) {
 		int saved = 0;
 
-		flp = &fcp->hash_table[i];
-		while ((fle = *flp) != NULL) {
+		hlist_for_each_entry_safe(fle, entry, tmp,
+					  &fcp->hash_table[i], u.hlist) {
 			if (saved < shrink_to &&
 			    flow_entry_valid(fle)) {
 				saved++;
-				flp = &fle->next;
 			} else {
-				*flp = fle->next;
-				flow_entry_kill(fc, fcp, fle);
+				deleted++;
+				hlist_del(&fle->u.hlist);
+				list_add_tail(&fle->u.gc_list, &gc_list);
 			}
 		}
 	}
+
+	flow_cache_queue_garbage(fcp, deleted, &gc_list);
 }
 
 static void flow_cache_shrink(struct flow_cache *fc,
@@ -182,8 +216,9 @@ struct flow_cache_entry_ops **flow_cache_lookup(
 {
 	struct flow_cache *fc = &flow_cache_global;
 	struct flow_cache_percpu *fcp;
-	struct flow_cache_entry *fle, **head;
 	struct flow_cache_entry_ops **ops;
+	struct flow_cache_entry *fle, *tfle;
+	struct hlist_node *entry;
 	unsigned int hash;
 
 	local_bh_disable();
@@ -200,12 +235,13 @@ struct flow_cache_entry_ops **flow_cache_lookup(
 		flow_new_hash_rnd(fc, fcp);
 
 	hash = flow_hash_code(fc, fcp, key);
-	head = &fcp->hash_table[hash];
-	for (fle = *head; fle; fle = fle->next) {
-		if (fle->family == family &&
-		    fle->dir == dir &&
-		    flow_key_compare(key, &fle->key) == 0)
+	hlist_for_each_entry(tfle, entry, &fcp->hash_table[hash], u.hlist) {
+		if (tfle->family == family &&
+		    tfle->dir == dir &&
+		    flow_key_compare(key, &tfle->key) == 0) {
+			fle = tfle;
 			break;
+		}
 	}
 
 	if (!fle) {
@@ -214,13 +250,13 @@ struct flow_cache_entry_ops **flow_cache_lookup(
 
 		fle = kmem_cache_alloc(flow_cachep, GFP_ATOMIC);
 		if (fle) {
-			fle->next = *head;
-			*head = fle;
 			fle->family = family;
 			fle->dir = dir;
 			fle->ops = NULL;
 			memcpy(&fle->key, key, sizeof(*key));
 			fle->ops = NULL;
+
+			hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
 			fcp->hash_count++;
 		}
 	} else if (fle->genid == atomic_read(&flow_cache_genid)) {
@@ -256,23 +292,26 @@ static void flow_cache_flush_tasklet(unsigned long data)
 	struct flow_flush_info *info = (void *)data;
 	struct flow_cache *fc = info->cache;
 	struct flow_cache_percpu *fcp;
-	int i;
+	struct flow_cache_entry *fle;
+	struct hlist_node *entry, *tmp;
+	LIST_HEAD(gc_list);
+	int i, deleted = 0;
 
 	fcp = per_cpu_ptr(fc->percpu, smp_processor_id());
 	for (i = 0; i < flow_cache_hash_size(fc); i++) {
-		struct flow_cache_entry *fle;
-
-		fle = fcp->hash_table[i];
-		for (; fle; fle = fle->next) {
+		hlist_for_each_entry_safe(fle, entry, tmp,
+					  &fcp->hash_table[i], u.hlist) {
 			if (flow_entry_valid(fle))
 				continue;
 
-			if (fle->ops)
-				(*fle->ops)->delete(fle->ops);
-			fle->ops = NULL;
+			deleted++;
+			hlist_del(&fle->u.hlist);
+			list_add_tail(&fle->u.gc_list, &gc_list);
 		}
 	}
 
+	flow_cache_queue_garbage(fcp, deleted, &gc_list);
+
 	if (atomic_dec_and_test(&info->cpuleft))
 		complete(&info->completion);
 }
@@ -314,7 +353,7 @@ void flow_cache_flush(void)
 static void __init flow_cache_cpu_prepare(struct flow_cache *fc,
 					  struct flow_cache_percpu *fcp)
 {
-	fcp->hash_table = (struct flow_cache_entry **)
+	fcp->hash_table = (struct hlist_head *)
 		__get_free_pages(GFP_KERNEL|__GFP_ZERO, fc->order);
 	if (!fcp->hash_table)
 		panic("NET: failed to allocate flow cache order %lu\n", fc->order);
@@ -348,7 +387,7 @@ static int flow_cache_init(struct flow_cache *fc)
 
 	for (order = 0;
 	     (PAGE_SIZE << order) <
-		     (sizeof(struct flow_cache_entry *)*flow_cache_hash_size(fc));
+		     (sizeof(struct hlist_head)*flow_cache_hash_size(fc));
 	     order++)
 		/* NOTHING */;
 	fc->order = order;
