perf tools: Generalize percent_color_snprintf()

Make percent_color_snprintf() handle negative values correctly.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1388388861-7931-2-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 66e44a5..8cda46c 100644 (file)
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -1,6 +1,7 @@
 #include <linux/kernel.h>
 #include "cache.h"
 #include "color.h"
+#include <math.h>
 
 int perf_use_color_default = -1;
 
@@ -298,10 +299,10 @@ const char *get_percent_color(double percent)
         * entries in green - and keep the low overhead places
         * normal:
         */
-       if (percent >= MIN_RED)
+       if (fabs(percent) >= MIN_RED)
                color = PERF_COLOR_RED;
        else {
-               if (percent > MIN_GREEN)
+               if (fabs(percent) > MIN_GREEN)
                        color = PERF_COLOR_GREEN;
        }
        return color;