[tip:perf/urgent] perf sched timehist: Honour 'comm_width' when aligning the headers

[tip-bot for Namhyung Kim <tipbot@zytor.com>]

Commit-ID:  0e6758e8231d5905c2e267566e9bd679a68a7b00
Gitweb:     http://git.kernel.org/tip/0e6758e8231d5905c2e267566e9bd679a68a7b00
Author:     Namhyung Kim <namhyung@kernel.org>
AuthorDate: Thu, 22 Dec 2016 15:03:48 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 22 Dec 2016 16:35:45 -0300

perf sched timehist: Honour 'comm_width' when aligning the headers

Current default value is 20, but that may change in the future, so make
places where we have 20 hardcoded use 'comm_width'.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20161222060350.17655-1-namhyung@kernel.org
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-sched.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index c1c07bf..020f9c9 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1817,7 +1817,7 @@ static void timehist_header(struct perf_sched *sched)
 		printf(" ");
 	}
 
-	printf(" %-20s  %9s  %9s  %9s",
+	printf(" %-*s  %9s  %9s  %9s", comm_width,
 		"task name", "wait time", "sch delay", "run time");
 
 	printf("\n");
@@ -1830,7 +1830,8 @@ static void timehist_header(struct perf_sched *sched)
 	if (sched->show_cpu_visual)
 		printf(" %*s ", ncpus, "");
 
-	printf(" %-20s  %9s  %9s  %9s\n", "[tid/pid]", "(msec)", "(msec)", "(msec)");
+	printf(" %-*s  %9s  %9s  %9s\n", comm_width,
+	       "[tid/pid]", "(msec)", "(msec)", "(msec)");
 
 	/*
 	 * separator
@@ -1840,7 +1841,7 @@ static void timehist_header(struct perf_sched *sched)
 	if (sched->show_cpu_visual)
 		printf(" %.*s ", ncpus, graph_dotted_line);
 
-	printf(" %.20s  %.9s  %.9s  %.9s",
+	printf(" %.*s  %.9s  %.9s  %.9s", comm_width,
 		graph_dotted_line, graph_dotted_line, graph_dotted_line,
 		graph_dotted_line);