diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 08e9568849b1..55aec4616d8b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5725,7 +5725,8 @@ static const char readme_msg[] =
 	"\t            .log2       display log2 value rather than raw number\n"
 	"\t            .buckets=size  display values in groups of size rather than raw number\n"
 	"\t            .usecs      display a common_timestamp in microseconds\n"
-	"\t            .percent    display a number of percentage value\n\n"
+	"\t            .percent    display a number of percentage value\n"
+	"\t            .graph      display a bar-graph of a value\n\n"
 	"\t    The 'pause' parameter can be used to pause an existing hist\n"
 	"\t    trigger or to start a hist trigger but not log any events\n"
 	"\t    until told to do so.  'continue' can be used to start or\n"
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 35b0e956f06e..946b2b8f0f2c 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -507,6 +507,7 @@ enum hist_field_flags {
 	HIST_FIELD_FL_BUCKET		= 1 << 17,
 	HIST_FIELD_FL_CONST		= 1 << 18,
 	HIST_FIELD_FL_PERCENT		= 1 << 19,
+	HIST_FIELD_FL_GRAPH		= 1 << 20,
 };
 
 struct var_defs {
@@ -1710,6 +1711,8 @@ static const char *get_hist_field_flags(struct hist_field *hist_field)
 		flags_str = "usecs";
 	else if (hist_field->flags & HIST_FIELD_FL_PERCENT)
 		flags_str = "percent";
+	else if (hist_field->flags & HIST_FIELD_FL_GRAPH)
+		flags_str = "graph";
 
 	return flags_str;
 }
@@ -2322,6 +2325,10 @@ parse_field(struct hist_trigger_data *hist_data, struct trace_event_file *file,
 			if (*flags & (HIST_FIELD_FL_VAR | HIST_FIELD_FL_KEY))
 				goto error;
 			*flags |= HIST_FIELD_FL_PERCENT;
+		} else if (strncmp(modifier, "graph", 5) == 0) {
+			if (*flags & (HIST_FIELD_FL_VAR | HIST_FIELD_FL_KEY))
+				goto error;
+			*flags |= HIST_FIELD_FL_GRAPH;
 		} else {
  error:
 			hist_err(tr, HIST_ERR_BAD_FIELD_MODIFIER, errpos(modifier));
@@ -5316,20 +5323,52 @@ div0:
 	return val ? UINT_MAX : 0;
 }
 
+#define BAR_CHAR '#'
+
+static inline const char *__fill_bar_str(char *buf, int size, u64 val, u64 max)
+{
+	unsigned int len = __get_percentage(val, max);
+	int i;
+
+	if (len == UINT_MAX) {
+		snprintf(buf, size, "[ERROR]");
+		return buf;
+	}
+
+	len = len * size / 10000;
+	for (i = 0; i < len && i < size; i++)
+		buf[i] = BAR_CHAR;
+	while (i < size)
+		buf[i++] = ' ';
+	buf[size] = '\0';
+
+	return buf;
+}
+
+struct hist_val_stat {
+	u64 max;
+	u64 total;
+};
+
 static void hist_trigger_print_val(struct seq_file *m, unsigned int idx,
 				   const char *field_name, unsigned long flags,
-				   u64 *totals, struct tracing_map_elt *elt)
+				   struct hist_val_stat *stats,
+				   struct tracing_map_elt *elt)
 {
 	u64 val = tracing_map_read_sum(elt, idx);
 	unsigned int pc;
+	char bar[21];
 
 	if (flags & HIST_FIELD_FL_PERCENT) {
-		pc = __get_percentage(val, totals[idx]);
+		pc = __get_percentage(val, stats[idx].total);
 		if (pc == UINT_MAX)
 			seq_printf(m, " %s (%%):[ERROR]", field_name);
 		else
 			seq_printf(m, " %s (%%): %3u.%02u", field_name,
 					pc / 100, pc % 100);
+	} else if (flags & HIST_FIELD_FL_GRAPH) {
+		seq_printf(m, " %s: %20s", field_name,
+			   __fill_bar_str(bar, 20, val, stats[idx].max));
 	} else if (flags & HIST_FIELD_FL_HEX) {
 		seq_printf(m, " %s: %10llx", field_name, val);
 	} else {
@@ -5339,7 +5378,7 @@ static void hist_trigger_print_val(struct seq_file *m, unsigned int idx,
 
 static void hist_trigger_entry_print(struct seq_file *m,
 				     struct hist_trigger_data *hist_data,
-				     u64 *totals,
+				     struct hist_val_stat *stats,
 				     void *key,
 				     struct tracing_map_elt *elt)
 {
@@ -5350,7 +5389,7 @@ static void hist_trigger_entry_print(struct seq_file *m,
 	hist_trigger_print_key(m, hist_data, key, elt);
 
 	/* At first, show the raw hitcount always */
-	hist_trigger_print_val(m, i, "hitcount", 0, totals, elt);
+	hist_trigger_print_val(m, i, "hitcount", 0, stats, elt);
 
 	for (i = 1; i < hist_data->n_vals; i++) {
 		field_name = hist_field_name(hist_data->fields[i], 0);
@@ -5360,7 +5399,7 @@ static void hist_trigger_entry_print(struct seq_file *m,
 			continue;
 
 		seq_puts(m, " ");
-		hist_trigger_print_val(m, i, field_name, flags, totals, elt);
+		hist_trigger_print_val(m, i, field_name, flags, stats, elt);
 	}
 
 	print_actions(m, hist_data, elt);
@@ -5374,7 +5413,8 @@ static int print_entries(struct seq_file *m,
 	struct tracing_map_sort_entry **sort_entries = NULL;
 	struct tracing_map *map = hist_data->map;
 	int i, j, n_entries;
-	u64 *totals = NULL;
+	struct hist_val_stat *stats = NULL;
+	u64 val;
 
 	n_entries = tracing_map_sort_entries(map, hist_data->sort_keys,
 					     hist_data->n_sort_keys,
@@ -5382,28 +5422,33 @@ static int print_entries(struct seq_file *m,
 	if (n_entries < 0)
 		return n_entries;
 
+	/* Calculate the max and the total for each field if needed. */
 	for (j = 0; j < hist_data->n_vals; j++) {
-		if (!(hist_data->fields[j]->flags & HIST_FIELD_FL_PERCENT))
+		if (!(hist_data->fields[j]->flags &
+			(HIST_FIELD_FL_PERCENT | HIST_FIELD_FL_GRAPH)))
 			continue;
-		if (!totals) {
-			totals = kcalloc(hist_data->n_vals, sizeof(u64),
-					 GFP_KERNEL);
-			if (!totals) {
+		if (!stats) {
+			stats = kcalloc(hist_data->n_vals, sizeof(*stats),
+				       GFP_KERNEL);
+			if (!stats) {
 				n_entries = -ENOMEM;
 				goto out;
 			}
 		}
-		for (i = 0; i < n_entries; i++)
-			totals[j] += tracing_map_read_sum(
-					sort_entries[i]->elt, j);
+		for (i = 0; i < n_entries; i++) {
+			val = tracing_map_read_sum(sort_entries[i]->elt, j);
+			stats[j].total += val;
+			if (stats[j].max < val)
+				stats[j].max = val;
+		}
 	}
 
 	for (i = 0; i < n_entries; i++)
-		hist_trigger_entry_print(m, hist_data, totals,
+		hist_trigger_entry_print(m, hist_data, stats,
 					 sort_entries[i]->key,
 					 sort_entries[i]->elt);
 
-	kfree(totals);
+	kfree(stats);
 out:
 	tracing_map_destroy_sort_entries(sort_entries, n_entries);