From: Petr Mladek <pmladek@suse.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>, Jiri Kosina <jkosina@suse.com>,
linux-kernel@vger.kernel.org, Petr Mladek <pmladek@suse.com>
Subject: [PATCH v3 0/2] ring_buffer: Make the benchmark slightly more safe
Date: Mon, 7 Sep 2015 14:38:36 +0200 [thread overview]
Message-ID: <1441629518-32712-1-git-send-email-pmladek@suse.com> (raw)
These two patches fix potential races in the ring buffer benchmark.
The first two versions were reviewed as part of the patchset that
tried to convert some kthreads into the kthread worker API, see
http://thread.gmane.org/gmane.linux.kernel.api/13224/focus=13821
Changes in v3:
+ fixed several comments (suggested by Steven)
+ removed duplicate memory barrier (suggested by Steven)
Changes in v2:
+ keep the extra initialization; fix a race instead
+ move the setting of the current state (suggested by Steven)
Petr Mladek (2):
ring_buffer: Do no not complete benchmark reader too early
ring_buffer: Fix more races when terminating the producer in the
benchmark
kernel/trace/ring_buffer_benchmark.c | 77 ++++++++++++++++++++----------------
1 file changed, 44 insertions(+), 33 deletions(-)
--
1.8.5.6
next reply other threads:[~2015-09-07 12:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-07 12:38 Petr Mladek [this message]
2015-09-07 12:38 ` [PATCH v3 1/2] ring_buffer: Do no not complete benchmark reader too early Petr Mladek
2015-09-07 12:38 ` [PATCH v3 2/2] ring_buffer: Fix more races when terminating the producer in the benchmark Petr Mladek
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