From: Andrew Morton <akpm@linux-foundation.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu
Subject: Re: [PATCH 3/4] tracing: fix recursive test level calculation
Date: Mon, 20 Apr 2009 12:30:34 -0700 [thread overview]
Message-ID: <20090420123034.ffa17e14.akpm@linux-foundation.org> (raw)
In-Reply-To: <20090420174017.997451662@goodmis.org>
On Mon, 20 Apr 2009 13:38:22 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> static int trace_irq_level(void)
> {
> - return hardirq_count() + softirq_count() + in_nmi();
> + return (hardirq_count() >> HARDIRQ_SHIFT) +
> + (softirq_count() >> + SOFTIRQ_SHIFT) +
> + !!in_nmi();
> }
hah, tricked you!
IMO hardirq_count() and softirq_count() should do the shift internally.
They're terribly misleading at present.
next prev parent reply other threads:[~2009-04-20 19:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-20 17:38 [PATCH 0/4] [GIT PULL] tracing: recursion and compile fixes Steven Rostedt
2009-04-20 17:38 ` [PATCH 1/4] tracing/events: call the correct event trace selftest init function Steven Rostedt
2009-04-20 17:38 ` [PATCH 2/4] tracing: remove dangling semicolon Steven Rostedt
2009-04-20 17:38 ` [PATCH 3/4] tracing: fix recursive test level calculation Steven Rostedt
2009-04-20 19:30 ` Andrew Morton [this message]
2009-04-20 17:38 ` [PATCH 4/4] tracing: remove recursive test from ring_buffer_event_discard Steven Rostedt
2009-04-20 17:55 ` [PATCH 0/4] [GIT PULL] tracing: recursion and compile fixes Ingo Molnar
2009-04-20 19:28 ` Ingo Molnar
2009-04-20 19:45 ` Frederic Weisbecker
2009-04-20 19:53 ` Steven Rostedt
2009-04-20 20:17 ` Steven Rostedt
2009-04-20 20:33 ` Frederic Weisbecker
2009-04-20 20:44 ` Steven Rostedt
2009-04-20 21:01 ` Frederic Weisbecker
2009-04-20 21:14 ` Steven Rostedt
2009-04-20 21:25 ` Frederic Weisbecker
2009-04-20 19:29 ` Ingo Molnar
2009-04-20 19:43 ` Steven Rostedt
2009-04-20 19:48 ` Frederic Weisbecker
2009-04-20 19:55 ` Steven Rostedt
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