From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jiri Olsa <jolsa@kernel.org>, David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 20/41] perf ui progress: Make sure we always define step value
Date: Tue, 12 Sep 2017 12:10:08 -0300 [thread overview]
Message-ID: <20170912151029.6612-21-acme@kernel.org> (raw)
In-Reply-To: <20170912151029.6612-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
Unlikely, but we could have ui_progress__init being called with total <
16, which would set the next and step variables to 0. That would force
unnecessary ui_progress__ops->update calls because 'next' would never
raise.
Forcing the next and step values to be always > 0.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170908120510.22515-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/progress.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index a0f24c7115c5..a9c15804b1f6 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -25,7 +25,7 @@ void ui_progress__update(struct ui_progress *p, u64 adv)
void ui_progress__init(struct ui_progress *p, u64 total, const char *title)
{
p->curr = 0;
- p->next = p->step = total / 16;
+ p->next = p->step = total / 16 ?: 1;
p->total = total;
p->title = title;
--
2.13.5
next prev parent reply other threads:[~2017-09-12 15:11 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 15:09 [GIT PULL 00/41] perf/core improvements and fixes Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 01/41] perf sched timehist: Add pid and tid options Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 02/41] perf tools: Support weak groups in 'perf stat' Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 03/41] perf vendor events: Support metric_group and no event name in JSON parser Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 04/41] perf stat: Factor out generic metric printing Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 05/41] perf stat: Print generic metric header even for failed expressions Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 06/41] perf pmu: Extract function to get JSON alias map Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 07/41] perf stat: Support JSON metrics in perf stat Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 08/41] perf list: Add metric groups to perf list Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 09/41] perf stat: Don't use ctx for saved values lookup Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 10/41] perf stat: Support duration_time for metrics Arnaldo Carvalho de Melo
2017-09-12 15:09 ` [PATCH 11/41] perf stat: Hide internal duration_time counter Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 12/41] perf stat: Update walltime_nsecs_stats in interval mode Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 13/41] tools include linux: Guard against redefinition of some macros Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 14/41] perf record: Support direct --user-regs arguments Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 15/41] perf script: Support user regs Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 16/41] perf tests: Fix compile when libunwind's unwind.h is available Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 17/41] tools lib api: Fix make DEBUG=1 build Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 18/41] perf tools: Open perf.data with O_CLOEXEC flag Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 19/41] perf tools: Add python-clean target Arnaldo Carvalho de Melo
2017-09-12 15:10 ` Arnaldo Carvalho de Melo [this message]
2017-09-12 15:10 ` [PATCH 21/41] perf ui progress: Fix progress update Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 22/41] perf ui progress: Add ui specific init function Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 23/41] perf ui progress: Add size info into progress bar Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 24/41] perf tools: Use scandir() to replace readdir() Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 25/41] perf config: Check not only section->from_system_config but also item's Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 26/41] perf config: Write a config file just once Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 27/41] perf config: Allow creating empty config set for config file autogeneration Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 28/41] perf tools: Make copyfile_offset() static Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 29/41] perf tools: Support running perf binaries with a dash in their name Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 30/41] perf stat: Fall weak group back even for EBADF Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 31/41] perf vendor events: Add JSON metrics for Broadwell Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 32/41] perf vendor events: Add JSON metrics for Skylake Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 33/41] perf vendor events: Add JSON metrics for Sandy Bridge Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 34/41] perf vendor events: Add JSON metrics for Sandy Bridge EP Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 35/41] perf vendor events: Add JSON metrics for Ivy Bridge Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 36/41] perf vendor events: Add JSON metrics for Haswell Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 37/41] perf vendor events: Add JSON metrics for Ivy Town Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 38/41] perf vendor events: Add JSON metrics for Haswell EP Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 39/41] perf vendor events: Add JSON metrics for Broadwell Server Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 40/41] perf vendor events: Add JSON metrics for Broadwell DE Arnaldo Carvalho de Melo
2017-09-12 15:10 ` [PATCH 41/41] perf vendor events: Add JSON metrics for Skylake server Arnaldo Carvalho de Melo
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