linux-kernel - [tip:perf/core] perf sched: Remove thread lookup in sample handler

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 15 Aug 2013 00:55:15 -0700
From:	tip-bot for David Ahern <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
	hpa@...or.com, mingo@...nel.org, peterz@...radead.org,
	namhyung@...nel.org, jolsa@...hat.com, fweisbec@...il.com,
	dsahern@...il.com, tglx@...utronix.de
Subject: [tip:perf/core] perf sched:
  Remove thread lookup in sample handler

Commit-ID:  ffb273dd7e3bd72e7d964fc0a0f6d441aceb7dae
Gitweb:     http://git.kernel.org/tip/ffb273dd7e3bd72e7d964fc0a0f6d441aceb7dae
Author:     David Ahern <dsahern@...il.com>
AuthorDate: Wed, 7 Aug 2013 22:50:45 -0400
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 12 Aug 2013 10:31:06 -0300

perf sched: Remove thread lookup in sample handler

Not used in the function, so no sense in doing the lookup here. Thread
look up will be done in the timehist command, and no sense in doing it
twice.

Signed-off-by: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1375930261-77273-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-sched.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 34ce57d..5285024 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1425,15 +1425,8 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_
 						 struct perf_evsel *evsel,
 						 struct machine *machine)
 {
-	struct thread *thread = machine__findnew_thread(machine, sample->tid);
 	int err = 0;
 
-	if (thread == NULL) {
-		pr_debug("problem processing %s event, skipping it.\n",
-			 perf_evsel__name(evsel));
-		return -1;
-	}
-
 	evsel->hists.stats.total_period += sample->period;
 	hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/