diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 5be39813fc9b8ec399a93ff7575dc37791015db3..ad6843f2e0ab7f34b9f0e6ea891ea6b713473b02 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -55,12 +55,15 @@ struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup)
 }
 EXPORT_SYMBOL_GPL(cgroup_to_blkio_cgroup);
 
-void blkiocg_update_blkio_group_stats(struct blkio_group *blkg,
-						unsigned long time)
+void blkiocg_update_timeslice_used(struct blkio_group *blkg, unsigned long time)
 {
-	blkg->time += time;
+	unsigned long flags;
+
+	spin_lock_irqsave(&blkg->stats_lock, flags);
+	blkg->stats.time += time;
+	spin_unlock_irqrestore(&blkg->stats_lock, flags);
 }
-EXPORT_SYMBOL_GPL(blkiocg_update_blkio_group_stats);
+EXPORT_SYMBOL_GPL(blkiocg_update_timeslice_used);
 
 void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
 			struct blkio_group *blkg, void *key, dev_t dev)
@@ -170,13 +173,121 @@ blkiocg_weight_write(struct cgroup *cgroup, struct cftype *cftype, u64 val)
 	return 0;
 }
 
-#define SHOW_FUNCTION_PER_GROUP(__VAR)					\
+static int
+blkiocg_reset_write(struct cgroup *cgroup, struct cftype *cftype, u64 val)
+{
+	struct blkio_cgroup *blkcg;
+	struct blkio_group *blkg;
+	struct hlist_node *n;
+	struct blkio_group_stats *stats;
+
+	blkcg = cgroup_to_blkio_cgroup(cgroup);
+	spin_lock_irq(&blkcg->lock);
+	hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
+		spin_lock(&blkg->stats_lock);
+		stats = &blkg->stats;
+		memset(stats, 0, sizeof(struct blkio_group_stats));
+		spin_unlock(&blkg->stats_lock);
+	}
+	spin_unlock_irq(&blkcg->lock);
+	return 0;
+}
+
+void get_key_name(int type, char *disk_id, char *str, int chars_left)
+{
+	strlcpy(str, disk_id, chars_left);
+	chars_left -= strlen(str);
+	if (chars_left <= 0) {
+		printk(KERN_WARNING
+			"Possibly incorrect cgroup stat display format");
+		return;
+	}
+	switch (type) {
+	case IO_READ:
+		strlcat(str, " Read", chars_left);
+		break;
+	case IO_WRITE:
+		strlcat(str, " Write", chars_left);
+		break;
+	case IO_SYNC:
+		strlcat(str, " Sync", chars_left);
+		break;
+	case IO_ASYNC:
+		strlcat(str, " Async", chars_left);
+		break;
+	case IO_TYPE_MAX:
+		strlcat(str, " Total", chars_left);
+		break;
+	default:
+		strlcat(str, " Invalid", chars_left);
+	}
+}
+
+typedef uint64_t (get_var) (struct blkio_group *, int);
+
+#define MAX_KEY_LEN 100
+uint64_t get_typed_stat(struct blkio_group *blkg, struct cgroup_map_cb *cb,
+		get_var *getvar, char *disk_id)
+{
+	uint64_t disk_total;
+	char key_str[MAX_KEY_LEN];
+	int type;
+
+	for (type = 0; type < IO_TYPE_MAX; type++) {
+		get_key_name(type, disk_id, key_str, MAX_KEY_LEN);
+		cb->fill(cb, key_str, getvar(blkg, type));
+	}
+	disk_total = getvar(blkg, IO_READ) + getvar(blkg, IO_WRITE);
+	get_key_name(IO_TYPE_MAX, disk_id, key_str, MAX_KEY_LEN);
+	cb->fill(cb, key_str, disk_total);
+	return disk_total;
+}
+
+uint64_t get_stat(struct blkio_group *blkg, struct cgroup_map_cb *cb,
+		get_var *getvar, char *disk_id)
+{
+	uint64_t var = getvar(blkg, 0);
+	cb->fill(cb, disk_id, var);
+	return var;
+}
+
+#define GET_STAT_INDEXED(__VAR)						\
+uint64_t get_##__VAR##_stat(struct blkio_group *blkg, int type)		\
+{									\
+	return blkg->stats.__VAR[type];					\
+}									\
+
+GET_STAT_INDEXED(io_service_bytes);
+GET_STAT_INDEXED(io_serviced);
+GET_STAT_INDEXED(io_service_time);
+GET_STAT_INDEXED(io_wait_time);
+#undef GET_STAT_INDEXED
+
+#define GET_STAT(__VAR, __CONV)						\
+uint64_t get_##__VAR##_stat(struct blkio_group *blkg, int dummy)	\
+{									\
+	uint64_t data = blkg->stats.__VAR;				\
+	if (__CONV)							\
+		data = (uint64_t)jiffies_to_msecs(data) * NSEC_PER_MSEC;\
+	return data;							\
+}
+
+GET_STAT(time, 1);
+GET_STAT(sectors, 0);
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+GET_STAT(dequeue, 0);
+#endif
+#undef GET_STAT
+
+#define SHOW_FUNCTION_PER_GROUP(__VAR, get_stats, getvar, show_total)	\
 static int blkiocg_##__VAR##_read(struct cgroup *cgroup,		\
-			struct cftype *cftype, struct seq_file *m)	\
+		struct cftype *cftype, struct cgroup_map_cb *cb)	\
 {									\
 	struct blkio_cgroup *blkcg;					\
 	struct blkio_group *blkg;					\
 	struct hlist_node *n;						\
+	uint64_t cgroup_total = 0;					\
+	char disk_id[10];						\
 									\
 	if (!cgroup_lock_live_group(cgroup))				\
 		return -ENODEV;						\
@@ -184,19 +295,32 @@ static int blkiocg_##__VAR##_read(struct cgroup *cgroup,		\
 	blkcg = cgroup_to_blkio_cgroup(cgroup);				\
 	rcu_read_lock();						\
 	hlist_for_each_entry_rcu(blkg, n, &blkcg->blkg_list, blkcg_node) {\
-		if (blkg->dev)						\
-			seq_printf(m, "%u:%u %lu\n", MAJOR(blkg->dev),	\
-				 MINOR(blkg->dev), blkg->__VAR);	\
+		if (blkg->dev) {					\
+			spin_lock_irq(&blkg->stats_lock);		\
+			snprintf(disk_id, 10, "%u:%u", MAJOR(blkg->dev),\
+					MINOR(blkg->dev));		\
+			cgroup_total += get_stats(blkg, cb, getvar,	\
+						disk_id);		\
+			spin_unlock_irq(&blkg->stats_lock);		\
+		}							\
 	}								\
+	if (show_total)							\
+		cb->fill(cb, "Total", cgroup_total);			\
 	rcu_read_unlock();						\
 	cgroup_unlock();						\
 	return 0;							\
 }
 
-SHOW_FUNCTION_PER_GROUP(time);
-SHOW_FUNCTION_PER_GROUP(sectors);
+SHOW_FUNCTION_PER_GROUP(time, get_stat, get_time_stat, 0);
+SHOW_FUNCTION_PER_GROUP(sectors, get_stat, get_sectors_stat, 0);
+SHOW_FUNCTION_PER_GROUP(io_service_bytes, get_typed_stat,
+			get_io_service_bytes_stat, 1);
+SHOW_FUNCTION_PER_GROUP(io_serviced, get_typed_stat, get_io_serviced_stat, 1);
+SHOW_FUNCTION_PER_GROUP(io_service_time, get_typed_stat,
+			get_io_service_time_stat, 1);
+SHOW_FUNCTION_PER_GROUP(io_wait_time, get_typed_stat, get_io_wait_time_stat, 1);
 #ifdef CONFIG_DEBUG_BLK_CGROUP
-SHOW_FUNCTION_PER_GROUP(dequeue);
+SHOW_FUNCTION_PER_GROUP(dequeue, get_stat, get_dequeue_stat, 0);
 #endif
 #undef SHOW_FUNCTION_PER_GROUP
 
@@ -204,7 +328,7 @@ SHOW_FUNCTION_PER_GROUP(dequeue);
 void blkiocg_update_blkio_group_dequeue_stats(struct blkio_group *blkg,
 			unsigned long dequeue)
 {
-	blkg->dequeue += dequeue;
+	blkg->stats.dequeue += dequeue;
 }
 EXPORT_SYMBOL_GPL(blkiocg_update_blkio_group_dequeue_stats);
 #endif
@@ -217,16 +341,38 @@ struct cftype blkio_files[] = {
 	},
 	{
 		.name = "time",
-		.read_seq_string = blkiocg_time_read,
+		.read_map = blkiocg_time_read,
+		.write_u64 = blkiocg_reset_write,
 	},
 	{
 		.name = "sectors",
-		.read_seq_string = blkiocg_sectors_read,
+		.read_map = blkiocg_sectors_read,
+		.write_u64 = blkiocg_reset_write,
+	},
+	{
+		.name = "io_service_bytes",
+		.read_map = blkiocg_io_service_bytes_read,
+		.write_u64 = blkiocg_reset_write,
+	},
+	{
+		.name = "io_serviced",
+		.read_map = blkiocg_io_serviced_read,
+		.write_u64 = blkiocg_reset_write,
+	},
+	{
+		.name = "io_service_time",
+		.read_map = blkiocg_io_service_time_read,
+		.write_u64 = blkiocg_reset_write,
+	},
+	{
+		.name = "io_wait_time",
+		.read_map = blkiocg_io_wait_time_read,
+		.write_u64 = blkiocg_reset_write,
 	},
 #ifdef CONFIG_DEBUG_BLK_CGROUP
        {
 		.name = "dequeue",
-		.read_seq_string = blkiocg_dequeue_read,
+		.read_map = blkiocg_dequeue_read,
        },
 #endif
 };
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index fe445178f586b8705baa8f9391826ffb62ace8ae..5c5e5294b5066b797221570b93c2f2f3640e8c2b 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -23,6 +23,14 @@ extern struct cgroup_subsys blkio_subsys;
 #define blkio_subsys_id blkio_subsys.subsys_id
 #endif
 
+enum io_type {
+	IO_READ = 0,
+	IO_WRITE,
+	IO_SYNC,
+	IO_ASYNC,
+	IO_TYPE_MAX
+};
+
 struct blkio_cgroup {
 	struct cgroup_subsys_state css;
 	unsigned int weight;
@@ -30,6 +38,23 @@ struct blkio_cgroup {
 	struct hlist_head blkg_list;
 };
 
+struct blkio_group_stats {
+	/* total disk time and nr sectors dispatched by this group */
+	uint64_t time;
+	uint64_t sectors;
+	/* Total disk time used by IOs in ns */
+	uint64_t io_service_time[IO_TYPE_MAX];
+	uint64_t io_service_bytes[IO_TYPE_MAX]; /* Total bytes transferred */
+	/* Total IOs serviced, post merge */
+	uint64_t io_serviced[IO_TYPE_MAX];
+	/* Total time spent waiting in scheduler queue in ns */
+	uint64_t io_wait_time[IO_TYPE_MAX];
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+	/* How many times this group has been removed from service tree */
+	unsigned long dequeue;
+#endif
+};
+
 struct blkio_group {
 	/* An rcu protected unique identifier for the group */
 	void *key;
@@ -38,15 +63,13 @@ struct blkio_group {
 #ifdef CONFIG_DEBUG_BLK_CGROUP
 	/* Store cgroup path */
 	char path[128];
-	/* How many times this group has been removed from service tree */
-	unsigned long dequeue;
 #endif
 	/* The device MKDEV(major, minor), this group has been created for */
 	dev_t   dev;
 
-	/* total disk time and nr sectors dispatched by this group */
-	unsigned long time;
-	unsigned long sectors;
+	/* Need to serialize the stats in the case of reset/update */
+	spinlock_t stats_lock;
+	struct blkio_group_stats stats;
 };
 
 typedef void (blkio_unlink_group_fn) (void *key, struct blkio_group *blkg);
@@ -105,8 +128,8 @@ extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
 extern int blkiocg_del_blkio_group(struct blkio_group *blkg);
 extern struct blkio_group *blkiocg_lookup_group(struct blkio_cgroup *blkcg,
 						void *key);
-void blkiocg_update_blkio_group_stats(struct blkio_group *blkg,
-						unsigned long time);
+void blkiocg_update_timeslice_used(struct blkio_group *blkg,
+					unsigned long time);
 #else
 struct cgroup;
 static inline struct blkio_cgroup *
@@ -122,7 +145,7 @@ blkiocg_del_blkio_group(struct blkio_group *blkg) { return 0; }
 
 static inline struct blkio_group *
 blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key) { return NULL; }
-static inline void blkiocg_update_blkio_group_stats(struct blkio_group *blkg,
+static inline void blkiocg_update_timeslice_used(struct blkio_group *blkg,
 						unsigned long time) {}
 #endif
 #endif /* _BLK_CGROUP_H */
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 7471d36bce893988ce94e8cc2dbccf3e28f6ca06..c5161bbf2fe99e0db0a7d61be896ded72b3e8f99 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -915,7 +915,7 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg,
 
 	cfq_log_cfqg(cfqd, cfqg, "served: vt=%llu min_vt=%llu", cfqg->vdisktime,
 					st->min_vdisktime);
-	blkiocg_update_blkio_group_stats(&cfqg->blkg, used_sl);
+	blkiocg_update_timeslice_used(&cfqg->blkg, used_sl);
 }
 
 #ifdef CONFIG_CFQ_GROUP_IOSCHED