linux-kernel - [PATCH 0/3] tracing: more list_empty(perf

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Message-ID: <20130617170142.GA19780@redhat.com>
Date:	Mon, 17 Jun 2013 19:01:42 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Steven Rostedt <rostedt@...dmis.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	"zhangwei(Jovi)" <jovi.zhangwei@...wei.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] tracing: more list_empty(perf_events) checks

Hello.

Steven, we already discussed this a bit some time ago...

DECLARE_EVENT_CLASS()->perf_trace_##call() is not trivial because
of __perf_task(), but perhaps we can change other
perf_trace_buf_submit(task => NULL) callers.


And can't we factor out WARN_ONCE(size > PERF_MAX_TRACE_SIZE) ?
See 3/3. I won't argue if you dislike it.

Oleg.

 include/trace/ftrace.h          |    4 ----
 kernel/trace/trace_event_perf.c |   10 ++++++++--
 kernel/trace/trace_kprobe.c     |    6 ------
 kernel/trace/trace_syscalls.c   |   24 ++++++++----------------
 kernel/trace/trace_uprobe.c     |    2 --
 5 files changed, 16 insertions(+), 30 deletions(-)

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